下列哪些选项中的代码在实际运行过程中会报错（ ） A: animals = ('猫','狗','猪')print(animals[0]) B: animals = ('猫','狗','猪')animals[0] = '蛇' C: animals = ('猫','狗','猪')animals = ('蛇',) D: animals = ('猫','狗','猪')animals.append('蛇')print(animals)

通过append()在列表尾部添加元素的方法是() A: 列表.append(新值) B: append.列表 C: append（列表） D: append(index)

People couldn't live without water; ______. A: neither are animals B: nor are animals C: neither could animals D: so could animals

In China every year is represented by a repeated cycle of ___________. A: 12 birth animals B: 12 great animals C: 12 zodiac animals D: 12 beloved animals

If visitors provide food the animals, this may upset the animals’ ______.

The case ________ using animals in research: a) Animals ________ a lot during the experiments. b) Much of the research is ________. c) Animals have ________ as humans do.

Only when they are injured______. A: will some animals attack a human being B: a human being will be attacked by some animals C: some animals will attack a human being D: that some animals attack a human being

‍以下对append 函数的描述中，错误的是（ ）。​ A: append 函数用于在已有的字符串末尾添加新的内容 B: 仅StringBuffer类提供append 函数 C: append 函数有多种形式，用于添加不同的内容 D: append 函数仅能添加字符串型的对象

African safari is about animals in their natural habitat, and lots of animals are easily seen but__.

B. What animals do you see? Write the names of three animals in the video.__________________ __________________ __________________