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患者男性，74岁，缺失，下颌缺牙区牙槽嵴吸收严重，拟行可摘局部义齿修复

根据该患者的牙槽嵴情况，排牙时，下列哪一项是错误的（）

A.按常规选择人工牙

B.选择较小的人工牙

C.磨改人工牙的颊舌径宽度

D.磨改人工牙的近远中径长度

E.磨改人工牙的颌面沟槽

答案

参考答案：A

单项选择题

In the 1960s, many young Americans were dissatisfied with American society. They wanted to end the Vietnam War and to make all of the people in the US equal. Some of them decided to "drop out" of American society and form their own societies. They formed utopian communities, which they called "communes", where they could follow their philosophy of "do your own thing". A group of artists founded a commune in southern Colorado called "Drop City". Following the ideas of philosopher and architect Buckminster Fuller they built dome shaped houses from pieces of old cars. Other groups, such as author Ken Kesey’s Merry Pranksters, the followers of San Francisco poet Steve Gaskin, and a group that called itself the Hog Farm, lived in old school houses and traveled around the United States. The Hog Farm became famous when they helped organize the Woodstock Rock Festival in 1969. Steve Gaskin’s followers tried to settle down on a farm in Tennessee, but they had to leave when some members of the group were arrested for growing marijuana.
Not all communes believed in the philosophy of "do your own thing", however. Twin Oaks, a commune founded in Virginia in the late 1960s, was based on the ideas of psychologist B. F. Skinner. The people who lived at Twin Oaks were carefully controlled by Skinner’s "conditioning" techniques to do things that were good for the community. In 1972, Italian architect Paolo Soleri began to build Arcosanti, a utopian city Arizsona where 2,500 people will live closely together in one large building called an " archeology". Soleri believes that people must live closely together so that they will all become one.

What was the Twin Oaks commune based on

A．The philosophy of "do your own thing".
B．Virginia in the late 1960s.
C．The ideas of psychologist.
D．The belief that people must live closely together.
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单项选择题

理想源于现实，因此（）

A.理想的实质是对现实生活的真实反映

B.理想的内容就是对物质世界及其发展规律的概括

C.理想源于现实，但又高于现实

D.理想就是对一切美好事物的期盼
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