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问题 单项选择题

制作义齿前，应用观测器的目的下面哪一种说法不正确()

A．观测分析基牙和组织倒凹的大小

B．画出导线

C．确定义齿各部件的共同就位道

D．画出牙冠外形高点线

E．画出各基牙以及与义齿有关的余留牙和牙槽嵴粘膜上的观测线

答案

参考答案：D

多项选择题

水泥的常规检验项目有：水泥细度检验，标准稠度用水量检验，水泥胶砂强度检验、除此之外还有（）。

A.抗压强度检验

B.抗折强度检验

C.体积安全性检验

D.凝结时间检验
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单项选择题

Many people acquire software programs for their home computers by illegally copying those programs rather than purchasing them. People who own home computers must be making, on average, fewer illegal copies of software programs than before, however, since the average number of software programs that people purchase to use on their home computers has increased substantially over the past five years.
Which of the following, if true, most strengthens the argument

A．The number of home computers in use has increased substantially over the past five years.

B．Five years ago, about half of the software programs used on home computers had been illegally copied rather than purchased.

C．Most people who have home computers use their computers more frequently the longer they have them.

D．Few people who prefer to copy computer software programs illegally cannot copy the software programs they want because they have no acquaintances who have those software programs.

E．(E) On average, people with home computers have the same number of software programs today as people with home computers did five years ago.
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