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【判断题】
操作分动器时，要求操纵机构必须保证：没有接上前桥，则不得换入低速挡A.
正确
B.
错误
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【单选题】We were unable to reach a decision because we felt that the speaker had been ______ and had avoided answering many of our questions.
A.
noncommital
B.
practical
C.
contentious
D.
unprepared
【单选题】If we ___ the other road ,we might have arrived here in time for the meeting.
A.
take
B.
had taken
C.
took
D.
have taken
【单选题】Only when we begin our college life______the importance of English.
A.
we realize
B.
we will realize
C.
have we realized
D.
do we realize
【简答题】2为了测定运动物体的加速度，在运动物体上装一直径为d的U形管(见图2-19)，测得管中液面差h=0．05m，两管的水平距离L=0．3m，求加速度a。
【简答题】基础底面位于透水性地基上的桥梁墩台,当验算地基稳定性时,应考虑 水位的浮力;当验算地基应力时,可仅考虑 水位的浮力,或不考虑水的浮力。
【简答题】水的浮力对桥梁墩台的影响,当基础底面位于透水性地基上时,验算墩台的稳定性,应采用 浮力,而验算地基应力时,仅考虑低水位时的浮力或不考虑水的浮力;
【简答题】怎么选择_____ the help of their group, we would not ha.________ the help of their group, we would not have succeeded in the investigation. A) Besides B) Regardless of C) But for D) Des...
【简答题】室内外电气线路如何分界?
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