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【判断题】
发动机怠速运转时，真空表指针稳定在57~71kPa范围内，表示正常。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】力的单位是__,简称__,符号是__。
【单选题】How would the man go to Shanghai?
A.
By plane.
B.
By train.
C.
Either by plane or by train.
【单选题】How much more would the man spend if he buys the tickets on the black market?
A.
100 dollars.
B.
200 dollars.
C.
300 dollars.
D.
400 dollars.
【简答题】如何理解幼儿数学教育的性质?
【简答题】频率的单位是______，简称赫，符号______．
【单选题】How would the man pay for his purchase?
A.
By check
B.
In cash
C.
By charge
D.
By money order
参考解析：
知识点：
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