题目内容

聚氯乙烯绝缘电力电缆的最小允许弯曲半径是()mm.

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In the opinion of Dr. Abrams, people wouldnt want to give up smoking because it ______.

A. can efficiently get nicotine to the brain
B. drives them to seek food, water and sex
C. calms, satisfies, and stimulates the mind
D. has to do with the survival of the species

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聚氯乙烯绝缘电力电缆的最小允许弯曲半径是()mm.

In the opinion of Dr. Abrams, people wouldnt want to give up smoking because it ______.

火灾保险 名词解释

不满足3范式的关系会出现的问题是()A 无法存取B 理解困难C 运行缓慢D 更新异常

在SQL数据控制语言中权限回收语句的关键词是:()A REVOKEB RETURNC RETRIEVED RECOVER

火灾保险名词解释

不满足3范式的关系会出现的问题是()
A 无法存取
B 理解困难
C 运行缓慢
D 更新异常

在SQL数据控制语言中权限回收语句的关键词是:()
A REVOKE
B RETURN
C RETRIEVE
D RECOVER