题目内容

努森扩散系数与压力成正比,与孔径成反比。

A. 对
B. 错

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Xi'an is ___ old city with ___ long history, isn't it?

A. a, an
B. an, a
C. the, the
D. the, a

More college graduates would like to work in _______ west part of our country ______ next year.

A. the, the
B. /,/
C. /, the
D. the, /

Chaffs is______ boy, but he can play the guitar very well.

A. an eight-years old
B. a eight-year-old
C. a eight-years-old
D. an eight-year-old

_______ milk is food. ________ milk in this cup has gone bad.

A. the, the
B. /,/
C. /, the
D. the,/

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