皮皮学，免费搜题
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【单选题】
治疗子痫的首选药物A.
地西泮
B.
硫喷妥钠
C.
氯醛
D.
吗啡
E.
硫酸镁
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皮皮学刷刷变学霸
举一反三
【单选题】We planted _________ trees last year. Two _________ of them are in the park.
A.
thousands of; hundred
B.
thousand of; hundred
C.
thousands of; hundreds
D.
thousand of; hundreds
【单选题】______ trees are cut down in the forests every year.
A.
Thousand
B.
Thousands
C.
Thousands of
D.
Thousand of
【单选题】Five ______ trees were cut down in the mountain every year. [ ]
A.
thousand
B.
thousands
C.
thousand of
D.
thousands of
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