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【单选题】
Medical accidents( )by drug have attracted much attention in that country.A.
causing
B.
to be caused
C.
be caused
D.
caused
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【简答题】By the time you get back, great changes __________in this area. A．will take place B. are taking place C. will have taken place D. are to take place
【简答题】来自总风缸的压力空气，经QY-15型调压阀减压至550Mpa后，贮存在容量为20L的控制风缸内。当电气阀的电气部分起作用时，控制风缸内的压力空气使经由空气管路和电空阀通往各（）。
【单选题】Mobile phone is _____ used by many people _____ a communication tool. [ ]
A.
widely; for
B.
widely; as
C.
wide; as
D.
wide; for
【简答题】It is a language widely used in the world.
【判断题】YZ-1型空气制动机在控制单机运行时，用作单独制动阀的空气制动阀实施均衡风缸的压力控制，再通过分配阀均衡部去控制制动缸的压力变化，从而实现制动和缓解作用。
A.
正确
B.
错误
【单选题】In the past few years there _ great changes in my hometown. [ ]
A.
have been
B.
were
C.
had been
D.
are
【简答题】Why are abbreviations widely used in EST?
【简答题】Why could not ceramics be used widely in the past?
【单选题】Why has growing population of young people caused the changes in museums?
A.
Because they are better educated.
B.
Because they have less spare time.
C.
Because they are stronger.
D.
Because there are more young people.
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