-___you hear me clearly from far away? -

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问题选择题

-___you hear me clearly from far away?

-Sorry.I can't.Say it again,will you?[ ]

A.May

B.need

C.Can

D.Should

答案

答案：C

单项选择题

既能敛肺止咳，又能涩肠止泻的药物是（）。

A.乌梅

B.金樱子

C.白果

D.肉豆蔻

E.赤石脂

单项选择题

设有学生表S(学号,姓名,性别,年龄),查询所有年龄小于等于18岁的女同学、并按年龄进行降序排序生成新的表WS,正确的SQL命令是【】。

A．SELECT*FROM sWHERE 性别=′女′AND年龄<=18ORDER BY 4DESC INTO TABLE WS

B．SELECT * FROM SWHERE性别=′女′AND年龄<=18ORDER BY年龄INTO TABLE WS

C．SELECT * FROM SWHERE性别=′女′AND年龄<=18 ORDER BY ′年龄′DESC INTO TABLE WS

D．SELECT * FROM SWHERE性别=′女′OR年龄<=1 8 ORDER BY′年龄′ASC INTO TARLE WS