题目内容

To solve theequation 4+3=?, you need to 4 and 3 to find the answer.

A. addition; additional
B. additional; add
C. addition; add

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You willtaller when you have a(n)power.

A. growth; growing
B. grow; growth
C. growing; growth

Thewill allow us tohow much paint we will need for the job.

A. estimated; estimate
B. estimate; estimation
C. estimation; estimate

Toa device means to make it.

A. activate; active
B. activity; active
C. activate; activity

在亲水油层中,水运动的阻力比油运动的阻力小。

A. 对
B. 错

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