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【判断题】
由于滑动摩擦因数比滚动摩擦因数大,因而滑动摩擦表面要比滚动摩擦表面的表面粗糙度参数值大。( ) 对 错A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【简答题】When he realized the police had spotted him, the man ________ the exit as quickly as possible. A) made off B) made for C) made out D) made up
【判断题】隐形条码能达到既不破坏包装装潢整体效果，也不影响条码特性的目的，同样隐形条码隐形以后，一般制假者难以仿制，其防伪效果很好，并且在印刷时不存在套色问题。()
A.
正确
B.
错误
【单选题】When he realized the true nature of the proposal, he ______ all communication with the group.
A.
convert
B.
reverted
C.
severed
D.
make
【单选题】When he realized the police had spotted him, the man______the exit as quickly as possible.
A.
made for
B.
made out
C.
made up to
D.
made way
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