题目内容

His ______ of the aeroplane was correct in every detail and could really fly.

A. shape
B. pattern
C. design
D. model

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D值

A. 杀灭微生物数量达50%所需的时间
B. 杀灭微生物数量达60%所需的时间
C. 杀灭微生物数量达70%所需的时间
D. 杀灭微生物数量达80%所需的时间
E. 杀灭微生物数量达90%所需的时间

The ______ goal of the book is to help bridge the gap between research and teaching, particularly the gap between researchers and teachers.

A. joint
B. intensive
C. overall
D. decisive

What makes the space shuttle ______ is that it takes off like a rocket but lands like an airplane.

A. exceptional
B. strange
C. unique
D. rare

Don't _____ the camera _______ unless you are sure you can put it together.

A. take... off
B. work... out
C. set... off
D. take... apart

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