题目内容

烟草丛顶病毒病在田间由烟蚜传播，田间机械摩擦不传毒，人工汁液摩擦可传毒。

A. 正确
B. 错误

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下列哪种肽段易于形成α-螺旋？()

A. 多聚甘氨酸
B. 多聚脯氨酸
C. 多聚丙氨酸

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Peter; Look, I' m at the conference. There’s a supplier here I want to take out for dinner. ______The Old Castle？
Susan; Well, I remember the Bridge was bad, so don't go there. Oh, the Palace Garden, take him there. I' m not sure about the Castle.
Peter: OK, thanks.

A. What do you plan to do with the supplier？
B. Who did you go with on holiday？
C. Where was it you went last time？
D. Why don't you go to the Bridge？

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【C14】

A. through
B. into
C. by
D. with

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上文认为“全球电信市场大战”之所以出现的原因是()。

A. 各公司实际利益的冲突和争夺的空间过于狭小
B. 许多冗员充斥或资金不足的电信公司的存在
C. 电信市场国际化潮流不以人的意志为转移
D. 科学技术的发展和国家之间电信业务的需求

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烟草丛顶病毒病在田间由烟蚜传播，田间机械摩擦不传毒，人工汁液摩擦可传毒。

A. 正确 B. 错误

下列哪种肽段易于形成α-螺旋？()

Peter; Look, I' m at the conference. There’s a supplier here I want to take out for dinner. ______The Old Castle？Susan; Well, I remember the Bridge was bad, so don't go there. Oh, the Palace Garden, take him there. I' m not sure about the Castle.Peter: OK, thanks.

【C14】

上文认为“全球电信市场大战”之所以出现的原因是()。

A. 正确
B. 错误

Peter; Look, I' m at the conference. There’s a supplier here I want to take out for dinner. ______The Old Castle？
Susan; Well, I remember the Bridge was bad, so don't go there. Oh, the Palace Garden, take him there. I' m not sure about the Castle.
Peter: OK, thanks.