At present,_____ number of students are near-sighted and, what’s worse, _____number of them is increasing.
A．a(chǎn); theB．a(chǎn); aC．the; theD．the; a
A
考查冠詞。a number of 許多，the number of……的數(shù)目。句意：目前許多學(xué)生近視眼，而且數(shù)字在增加。
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