搜题
王老师:19139051760(拨打)
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第1题

1. We must honor our _________ to smaller nations. A) progress B) commitments C) performanc
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第2题

用兆欧表测量吸收比是测量（）时绝缘电阻之比，当温度在10—30℃时吸收比为1.3—2.0时合格。 A.15S和60S B.15S和45S C.20S和70S； D.不定
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第3题

10. She ________ to the hope that his son was not dead. A) held B) attached C) remained
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第4题

9. They can be ________ about the date of our test. A) flexible B) lasting C) previous
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