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问题 单项选择题

起动机全制动试验的目的在于测出全制动时的（）与标准进行比较，以判断起动机的机械和电器和故障

A、电压与转矩

B、电阻与转矩

C、电流与转矩

D、电流和转速

答案

参考答案：C

选择题

In fact, the house as well as his two cars ______ him all the money he earned during the 20 years．

A．has been cost

B．have cost

C．has cost

D．have been cost
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单项选择题

站级系统在运营的过程当中经常需要和总部级系统（）进行数据交互。

A、POS

B、BOS

C、HOS

D、Fuel Server
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