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Oil and coal come from the plants and animals that died___of years ago
A.billion B.millions C.thousand D.many hundreds
人气:294 ℃ 时间:2020-05-28 12:24:54
解答
B数词不能用形容词再修饰,不过可以加S表不确定数字.如hundred of,数以百计的,thousands of数以千计的,millions of数以百万计的.
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