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试验指标 ( experimental index )
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举一反三
【单选题】Where one of two vessels is to keep out of the way the other________.
A.
shall not keep her course but shall keep her speed
B.
shall not keep her course and speed
C.
shall keep her course but change her speed
D.
shall keep her course and speed
【简答题】系统误差、随机误差、粗大误差的特点及其产生原因是什么?
【简答题】A.cater for B.cater with C.keep up D.keep out
【简答题】汽车电气产品的标称电压有哪几种?他们的含义分别表示什么?
【简答题】什么是系统误差？产生系统误差的原因是什么？如何发现系统误差？减少系统误差有哪几种方法？
【简答题】什么是系统误差？产生系统误差的原因是什么？
【单选题】In face of failure, it is important to ______ a good state of mind.
A.
keep up
B.
keep on
C.
keep out
D.
keep off
【单选题】. Marry notices are placed in the park warning people to ____ the grass.
A.
keep out
B.
keep out of
C.
keep away
D.
keep off
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