单项选择题

Smoking is so harmful to personal health that it kills people each year （）than automobile accidents.

A. seven more times
B. seven times more
C. over seven times
D. seven times

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The microscope can （）the object 100 times.

A. magnify
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C. develop
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According to the weather forecast, which is usually（）, it will snow this afternoon.

A. accurate
B. precise
C. exact
D. perfect
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