题目内容

The firm wants to _____ internationally.

A. expand
B. expend

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Newspaper publishing offers plenty of opportunities to _____ capital but not much opportunity for profits.

A. expand
B. expend

May I _____ a little on what Mr. Smith has just said?

A. expand
B. expend

If you _____ 2,000 calories per week on exercise you will cut your risk of a heart attack by one-third.

A. expand
B. expend

太阳辐射纬度分布不均引起的是()。

A. 经度地带性分异规律
B. 纬度地带性分异规律
C. 垂直地带性分异规律
D. 地方性分异

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