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选择合适的短语。A preclude ... fromB deviate fromC fail inD triumph overE work one's way intoF in the pursuit ofG write offH remove ... from1.When Francis got back after Easter, he was far behind his classmates and he wasthe second into the third class at his own desire.2.The president acknowledged that he had somehowhis ability to communicate to the American people.3.Unfortunately, as history has shown, some of the companies are guilty of misconductprofit.4.The shipthe agreed voyage and arrived about 10 days late and in the meantime the price of sugar had fallen and the merchants lost over £4,000.5.Because the transcript is still under seal, the law(1)them(2)reading and discussing the evidence in detail.6.In carrying out the plan we are likely to come across difficulties, but we are determined tothem all.7.Without increasing investment in education, it will be increasingly difficult for low-income people tothe middle class.8.All the passengers in the plane that crashed in the middle of the Andes Mountains a week ago wereas dead.

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小型风力发电机的容量为

A. >1MW
B. 100KW—1MW
C. 1KW—100KW
D. <1KW

可以调节和改变哪些量风能会发生变化

A. 空气质量
B. 温度
C. 风速
D. 受风面积

风力发电包括风力机和发电机两部分。其中风力机的功能是将( )转换成( ),发电机是将( )转换成( )。

上风向风力机可以自动对准风向而免除了调向装置。

A. 对
B. 错

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