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【单选题】
维生素E的功能不正确的是:。( )A.
维生素E含量高的膳食可降低肺癌及乳腺癌的危险性
B.
维生素E是抗氧化物质,保护细胞膜和DNA
C.
维生素E能使硒和类胡萝卜素保持氧化状态,从而加强这些物质的氧化能力
D.
维生素E可抑制亚硝胺的生成
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【简答题】He paid for a seat, when he _____ have entered free. A．could B．would C．must D．need
【单选题】It is advisable that he ________ a seat in the train to Beijing.
A.
may reserve
B.
ought to reserve
C.
reserve
D.
must reserve
【简答题】A．Wear a seat belt each time he drives. B．Stop children riding in the front seat. C．Make the front seat passenger wear a seat belt. D．Make the front seat children under 14 wear a seat belt.
【简答题】A．He asked for a speciallyprepared dinner. B．He wanted an aisle seat. C．He requested a blanket for his baby. D．He asked for a seat near the front of the plane.
【单选题】He paid for a seat, when he ______ have entered free.
A.
could
B.
would
C.
must
D.
need
【判断题】着西装时,衬衫袖子的扣子必须扣上,切记翻起。如衬衫单穿时,袖子可以卷起,领子可以松开,但如要配扎领带,不论是否与西装合穿,都必须将衬衫的全部扣子系好,不能挽起衣袖,袖口也应扣好
A.
正确
B.
错误
【单选题】How does the man do with his cello when he's traveling?
A.
He reserves a seat for it.
B.
He leaves it at home.
C.
He ships it by express.
D.
He shares the seat with it.
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