题目内容

在关系数据库中,用来表示实体问联系的是()

A. 属性
B. 二维表
C. 网状结构
D. 树状结构

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升浮的药物能()

A. 平喘
B. 潜阳
C. 发汗
D. 利尿

It ‘s_____my power to make final decision on the matter.

A. off
B. out
C. above
D. beyond

Both of my brothers are now married ,so I have two_____.

A. sister-ins-law
B. sisters-in-law
C. sisters-in-law
D. sister-in-law

The teacher gave_____the examination paper.

A. off
B. over
C. up
D. out

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