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【判断题】

采用全铝合金车身的大型豪华轿车,其车身刚度和质量比旧款传统钢制车身均降低了。

A.
正确
B.
错误
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参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】Wesley Autrey can't fly, but he is still being called a real-life Superman! Last week, the brave 50-year-old rescued Cameron Hollopeter, 20, from being hit by a train. The train was entering a subway ...

A.
he can rescue anybody in danger as he has the ability to fly
B.
he rescued a young man from being hit by a running train
C.
he protected his daughters from harm in a subway station
D.
he succeeded in stopping a train from running over a passenger

【单选题】( )砂轮适用于硬质合金车刀的刃磨。

A.
绿色碳化硅
B.
黑色碳化硅
C.
碳化硼
D.
氧化铝