国家一、二等水准测量单一水准路线高差闭合差的分配原则是（）。

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问题单项选择题

A.按距离成比例反号分配

B.按距离成比例同号分配

C.按测段平均反号分配

D.按测段平均同号分配

答案

参考答案：A

单项选择题

From a newspaper editorial:
Many people who are addicted to heroin will eventually attempt to overcome their addiction, principally for two reasons: the expense of maintaining a heroin addiction and the fear of arrest. If heroin were legalized and made available cheaply, as some people advocate, neither of these reasons would apply.
The considerations above can best serve as part of an argument that

A．legalizing the sale of heroin would cause the price of this drug to go down.

B．making it easier for heroin addicts to obtain treatment for their addiction would encourage many heroin addicts to attempt to overcome their addiction.

C．legalizing the sale of heroin would increase the number of crimes committed by heroin addicts to support their addiction.

D．making heroin available legally and cheaply would make it leas likely that heroin addicts will attempt to overcome their addiction.

E．(E) decreasing the severity of penalties for individuals who use heroin would not increase the number of new heroin addicts.

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单项选择题 A3/A4型题

某年轻患者，可摘局部义齿修复后3周，主诉义齿压痛。检查：46、45、34、35缺失，余留牙正常，义齿基托覆盖区域黏膜红肿、压痕，局部义齿47、44、36均为双臂卡环，义齿贴合，固位尚可。

该义齿的支持方式为（）

A.牙槽嵴支持式

B.牙支持式

C.混合支持式

D.黏膜支持式

E.支托支持式

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