国开题库

国开题库

Politics is __________ a dirty business.

#A.inherence#B.inherent#C.inherently
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Never before _________ see such a terrible car accident on the road!

#A.I have#B.have I#C.did I
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Police asked students to always be on their guard when walking to school.

#A.学生走路上学的途中，警察让他们一定要时刻带着警卫。#B.警方告诫学生们，走路去上学的途中一定要时刻保持警惕。#C.走路上学的途中因为有警察，学生们一定不要紧张。
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NetLibray电子图书快速检索方式支持布尔逻辑算符AND、OR、NOT。

#A.对#B.错
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PN结正向偏置是指P型区接电源的负极，N型区接电源的正极。

#A.对#B.错
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Neither John his father was able to wake up early enough to catch the morning train.

#A.nor#B.or#C.but
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PN结加正向偏置是指（）。

#A.P区接电源负极，N区接电源正极#B.P区接电源正极，N区接电源负极#C.P区和N区都接电源正极
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Nearly 30 years ago, China __________ its “Compulsory Education Law”, ensuring quality and equality in education.

#A.completed#B.implemented#C.comprehended
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PN结加正向偏置是指（）。

#A.P区接电源负极，N区接电源正极#B.P区接电源正极，N区接电源负极#C.P区和N区都接电源负极#D.P区和N区都接电源正极
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Nearly 3,000 people were killed in the 911 attack.

#A.对#B.错
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