9.Tiny sensors will be built into the new spaceship so that______.
A. the computer brain can feel the smallest pinpricks
B. the spaceship can have human sensations
C. the sensors can send signals to the spaceship
D. the spaceship will be capable of repairing itself
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10. What is the passage mainly about?
A. How to build a future spaceship.
B. How to make use of carbon nanotubes.
C. How to protect astronauts in space.
D. How to block out radiation.
在一个C++源程序中,main函数的位置( )。
A. 必须在程序的最开始
B. 可以任意
C. 必须在程序的最后
D. 必须在其它函数之前
C++语言的函数体必须放在一对( )中。
A. {}
B. " "
C. []
D. ()
C++语言中每条语句必须以( )结束。
A. 句号
B. 小数点
C. 分号
D. 换行符
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