Python支持复数类型，以下哪个说法是错误的( ) A: 实部和虚部都是浮点数 B: 虚部后缀j必须是小写形式 C: 表示复数的语法是real+ imagej D: l+j不是复数

于Python中的复数,下列说法错误的是() A: 表示复数的语法是real<br/>+ imagej B: 实部和虚部都是浮点数 C: 虚部必须后缀j,且必须是小写 D: 方法conjugate返回复数的共轭复数

完型填空:(从所给的15个词里选择恰当的词填空)Just because they can't sing opera or ride a bicycle doesn't mean that animals don't have culture. There's no better example of this than killer whales. As one of the most __1__ predators （食肉动物）, killer whales may not fit the __2__ of a cultured creature. However, these beasts of the sea do display a vast range of highly __3__ behaviors that appear to be driving their genetic development.The word "culture" comes from the Latin "colere," which __4__ means "to cultivate." In other words, it refers to anything that is __5__ or learnt, rather than instinctive or natural. Among human populations, culture not only affects the way we live, but also writes itself into our genes, affecting who we are. For instance, having spent many generations hunting the fat marine mammals of the Arctic, the Eskimos of Greenland have developed certain genetic __6__ that help them digest and utilize this fat- rich diet, thereby allowing them to __7__ in their cold climate.Like humans, killer whales have colonized a range of different __8__ across the globe, occupying every ocean basin on the planet with an empire that ____ 9t hunting techniques in order to gain the upper hand over their local prey （猎物）. This, in turn, has a major effect on their diet, leading scientists to __10__ that the ability to learn population-specific hunting methods could be driving the animals, genetic developmentA) acquiredB) adaptationsC) brutalD) deliberatelyE) expressedF) extendsG) habitatsH) humbleI) imageJ) literallyK) refinedL) revolvesM) speculateN) structureO) thrive

Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.Just because they can't sing opera or ride a bicycle doesn't mean that animals don't have culture. There's no better example of this than killer whales. As one of the most ______ predators （食肉动物）, killer whales may not fit the ______ of a cultured creature. However, these beasts of the sea do display a vast range of highly______ behaviors that appear to be driving their genetic development.The word "culture" comes from the Latin "colere," which ______ means "to cultivate." In other words, it refers to anything that is______ or learnt, rather than instinctive or natural. Among human populations, culture not only affects the way we live, but also writes itself into our genes, affecting who we are. For instance, having spent many generations hunting the fat marine mammals of the Arctic, the Eskimos of Greenland have developed certain genetic ______ that help them digest and utilize this fat- rich diet, thereby allowing them to ______ in their cold climate.Like humans, killer whales have colonized a range of different ______ across the globe, occupying every ocean basin on the planet with an empire that______ from pole to pole. As such, different populations of killer whales have had to learn different hunting techniques in order to gain the upper hand over their local prey （猎物）. This, in turn, has a major effect on their diet, leading scientists to ______ that the ability to learn population-specific hunting methods could be driving the animals, genetic development.A) acquiredB) adaptationsC) brutalD) deliberatelyE) expressedF) extendsG) habitatsH) humbleI) imageJ) literallyK) refinedL) revolvesM) speculateN) structureO) thrive

Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter.. You may not use any of the words in the bank more than once.Just because they can’t sing opera or ride a bicycle doesn’t mean that animals don’t have culture. There’s no better example of this than killer whales. As one of the most __26__ predators(食肉动物)，killer whales may not fit the __27__ of a cultured creature. However, these beasts of the sea do display a vast range of highly __28__ behaviors that appear to be driving their genetic development.The word “culture” comes from the Latin “colere,” which __29__ means “to cultivate.” In other words, it refers to anything that is __30__ or learnt, rather than instinctive or natural. Among human populations, culture not only affects the way we live, but also writes itself into our genes, affecting who we are. For instance, having spent many generations hunting the fat marine mammals of the Arctic, the Eskimos of Greenland have developed certain genetic __31__ that help them digest and utilize this fat-rich diet, thereby allowing them to __32__ in their cold climate.Like humans, killer whales have colonized a range of different __33__ across the globe, occupying every ocean basin on the planet, with an empire that __34__ from pole to pole. As such, different populations of killer whales have had to learn different hunting techniques in order to gain the upper hand over their local prey(猎物). This, in turn, has a major effect on their diet, leading scientists to __35__ that the ability to learn population-specific hunting methods could be driving the animals’ genetic development.A) acquiredB) adaptationsC) brutalD) deliberatelyE) expressedF) extendsG) habitatsH) humbleI) imageJ) litereallyK) refinedL) revolvesM) speculateN) structureO) thrive

Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the center. You may not use any of the words in the bank more than once．Just because they can’t sing opera or ride a bicycle doesn’t mean that animals don’t have culture. There’s no better example of this than killer whales. As one of the most __26__ predators（食肉动物），killer whales may not fit the __27__ of a cultured creature. However, these beasts of the sea do display a vast range of highly __28__ behaviors that appear to be driving their genetic development.The word “culture” comes from the Latin “colere,” which __29__ means “to cultivate.” In other words, it refers to anything that is __30__ or learnt, rather than instinctive or natural. Among human populations, culture not only affects the way we live, but also writes itself into our genes, affecting who we are. For instance, having spent many generations hunting the fat marine mammals of the Arctic, the Eskimos of Greenland have developed certain genetic __31__ that help them digest and utilize this fat-rich diet, thereby allowing them to __32__ in their cold climate.Like humans, killer whales have colonized a range of different __33__ across the globe, occupying every ocean basin on the planet, with an empire that __34__ from pole to pole. As such, different populations of killer whales have had to learn different hunting techniques in order to gain the upper hand over their local prey（猎物）. This, in turn, has a major effect on their diet, leading scientists to __35__ that the ability to learn population-specific hunting methods could be driving the animals’ genetic development.A) acquiredB) adaptationsC) brutalD) deliberatelyE) expressedF) extendsG) habitatsH) humbleI) imageJ) literallyK) refinedL) revolvesM) speculateN) structureO) thrive

Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.Section ADirections: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.Just because they can't sing opera or ride a bicycle doesn't mean that animals don't have culture. There's no better example of this than killer whales. As one of the most ______ predators （食肉动物, killer whales may not fit the______ of a cultured creature. However, these beasts of the sea do display a vast range of highly ______ behaviors that appear to be driving their genetic development.The word "culture" comes from the Latin "colere," which ______ means "to cultivate." In other words, it refers to anything that is ______ or learnt, rather than instinctive or natural. Among human populations, culture not only affects the way we live, but also writes itself into our genes, affecting who we are. For instance, having spent many generations hunting the fat marine mammals of the Arctic, the Eskimos of Greenland have developed certain genetic______ that help them digest and utilize this fat- rich diet, thereby allowing them to ______ in their cold climate.Like humans, killer whales have colonized a range of different______ across the globe, occupying every ocean basin on the planet with an empire that ______ from pole to pole. As such, different populations of killer whales have had to learn different hunting techniques in order to gain the upper hand over their local prey （猎物）. This, in turn, has a major effect on their diet, leading scientists to ______ that the ability to learn population-specific hunting methods could be driving the animals, genetic development.A) acquiredB) adaptationsC) brutalD) deliberatelyE) expressedF) extendsG) habitatsH) humbleI) imageJ) literallyK) refinedL) revolvesM) speculateN) structureO) thrive