【題目】—It’s said that most middle school students sleep for 7 hours every night.

—Yes, I've heard that too. It's not good for their health.

A.less thanB.more thanC.fewer thanD.longer than

【答案】C

【解析】

句意:——據(jù)說大多數(shù)中學(xué)生每晚的睡眠時(shí)間不足7個(gè)小時(shí)。——是的,我也聽說過。這對(duì)他們的健康不好。

考查比較級(jí)。首先意思是睡不到7小時(shí),排除BD。hour可數(shù),要用few修飾,故選C。

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