• 2022-05-27 问题

    下列哪个是早上好的表达?() A: Boa tarde B: Boa noite C: Bom dia

    下列哪个是早上好的表达?() A: Boa tarde B: Boa noite C: Bom dia

  • 2021-04-14 问题

    Read the following sentence: It was a picture of a boa constrictor in the act of swallowing an animal. In this sentence, how many articles are there?

    Read the following sentence: It was a picture of a boa constrictor in the act of swallowing an animal. In this sentence, how many articles are there?

  • 2022-05-28 问题

    Read the following sentence: It was a picture of a boa constrictor in the act of swallowing an animal. In this sentence, which word is a gerund?

    Read the following sentence: It was a picture of a boa constrictor in the act of swallowing an animal. In this sentence, which word is a gerund?

  • 2022-06-19 问题

    下列缩写分别是主配线架分配线架是()。 A: AMDF B: BOA C: CIDF D: DPM

    下列缩写分别是主配线架分配线架是()。 A: AMDF B: BOA C: CIDF D: DPM

  • 2022-05-28 问题

    Read the following sentence: It was a picture of a boa constrictor in the act of swallowing an animal.<br/>In this sentence above, which word is a gerund? A: was B: act C: swallowing

    Read the following sentence: It was a picture of a boa constrictor in the act of swallowing an animal.<br/>In this sentence above, which word is a gerund? A: was B: act C: swallowing

  • 2022-05-25 问题

    某企业生产的袋装食品采用自动打包机包装,每袋标准重量为[tex=2.0x1.286]qaPQMKPCDclJOeThDs1boA==[/tex]。现从某天生产的一批产品中按重复抽样随机抽取50包进行检查,测得每包重量(单位:[tex=0.5x1.286]xchkYdkyGsHZyvcALOmunw==[/tex])如下:[img=690x186]177297fa884f23a.png[/img]已知食品包重量服从正态分布,要求:(1)确定该种食品平均重量的[tex=1.786x1.286]ZIDxHlc2ahnRbqHtWh6JIQ==[/tex]的置信区间。(2)如果规定食品重量低于[tex=2.0x1.286]qaPQMKPCDclJOeThDs1boA==[/tex]属于不合格,确定该批食品合格率的[tex=1.786x1.286]ZIDxHlc2ahnRbqHtWh6JIQ==[/tex]的置信区间。

    某企业生产的袋装食品采用自动打包机包装,每袋标准重量为[tex=2.0x1.286]qaPQMKPCDclJOeThDs1boA==[/tex]。现从某天生产的一批产品中按重复抽样随机抽取50包进行检查,测得每包重量(单位:[tex=0.5x1.286]xchkYdkyGsHZyvcALOmunw==[/tex])如下:[img=690x186]177297fa884f23a.png[/img]已知食品包重量服从正态分布,要求:(1)确定该种食品平均重量的[tex=1.786x1.286]ZIDxHlc2ahnRbqHtWh6JIQ==[/tex]的置信区间。(2)如果规定食品重量低于[tex=2.0x1.286]qaPQMKPCDclJOeThDs1boA==[/tex]属于不合格,确定该批食品合格率的[tex=1.786x1.286]ZIDxHlc2ahnRbqHtWh6JIQ==[/tex]的置信区间。

  • 2021-04-14 问题

    Read the following sentences: Once when I was six years old I saw a magnificent picture in a book, called True Stories from Nature, about the primeval forest. It was a picture of a boa constrictor in the act of swallowing an animal. In both sentences, all the nouns are count nouns.

    Read the following sentences: Once when I was six years old I saw a magnificent picture in a book, called True Stories from Nature, about the primeval forest. It was a picture of a boa constrictor in the act of swallowing an animal. In both sentences, all the nouns are count nouns.

  • 2022-06-06 问题

    Huawei, a Chinese firm, received 5 million US dollars from its sales in the US and deposited them into BoA (a US bank). A: China's nancial account gets a positive entry of 5 million. B: China's nancial account gets a negative entry of 5 million. C: China's nancial account does not change. D: It is not clear how the nancial account of China would change.

    Huawei, a Chinese firm, received 5 million US dollars from its sales in the US and deposited them into BoA (a US bank). A: China's nancial account gets a positive entry of 5 million. B: China's nancial account gets a negative entry of 5 million. C: China's nancial account does not change. D: It is not clear how the nancial account of China would change.

  • 2022-06-01 问题

    for i in range(b.max_row): for j in range(b.max_column): print(b.cell(row=i,column=j).value)上面语句运行的结果是:__________。 A: 1 1 1 1 1 1 1 1 1 1 B: 1111111111 C: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D: 出现异常

    for i in range(b.max_row): for j in range(b.max_column): print(b.cell(row=i,column=j).value)上面语句运行的结果是:__________。 A: 1 1 1 1 1 1 1 1 1 1 B: 1111111111 C: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D: 出现异常

  • 2021-04-14 问题

    【单选题】CDMA通信的基站,假定基站A的码片序列是+1 +1 +1 -1 -1 +1 -1 -1,基站发射bit为101时,实际发射的信号是 A. +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 –1 –1 –1 +1 +1 –1 +1 +1 B. +1 +1 +1 -1 -1 +1 -1 -1 –1 –1 –1 +1 +1 –1 +1 +1 +1 +1 +1 -1 -1 +1 -1 -1 C. +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 D. –1 –1 –1 +1 +1 –1 +1 +1 –1 –1 –1 +1 +1 –1 +1 +1 –1 –1 –1 +1 +1 –1 +1 +1

    【单选题】CDMA通信的基站,假定基站A的码片序列是+1 +1 +1 -1 -1 +1 -1 -1,基站发射bit为101时,实际发射的信号是 A. +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 –1 –1 –1 +1 +1 –1 +1 +1 B. +1 +1 +1 -1 -1 +1 -1 -1 –1 –1 –1 +1 +1 –1 +1 +1 +1 +1 +1 -1 -1 +1 -1 -1 C. +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 D. –1 –1 –1 +1 +1 –1 +1 +1 –1 –1 –1 +1 +1 –1 +1 +1 –1 –1 –1 +1 +1 –1 +1 +1

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