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10.若函数f(x)=x(x+a)为偶函数,则a=( )

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It is reported that a project to build the longest bridge in the world is ____ these days.

A. on the way
B. in this way
C. under way
D. get in the way

At last, excited and surprised, he founded a ____treasure in the cave.

A. price
B. priced
C. low-priced
D. priceless

The ____team pitched on the mountain.

A. survey
B. surveying
C. assess
D. investigate

What I have said does not apply ____you.

A. of
B. for
C. to
D. on

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