题目内容

_________

A. fault
B. daughter
C. cause
D. laugh

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加单氧酶系如何组成?在生物转化中有何作用?

The mountain is 1,000 feet _______ the sea level.

A. over
B. higher
C. above
D. high

A famous Canadian doctor expressed the value of hobbies by saying, “______ man is really happy without a hobby.”

A. Not
B. Without
C. No
D. None

A.castleB.vastC.wasteD.fasten

A. castle
B. vast
C. waste
D. fasten

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