It took a long time and much money to rewire the dorms and equip the students because of the computer revolution of the 1980s.
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From 1995 to 2004,the vast majorityresidence hallsconstructed on college campuses were traditional dorms.
A. 对
B. 错
Match the word or phrase with the proper meaning.
开式齿轮传动中，强度条件σF≤[σF]主要是针对___________。
A. 齿面磨损及轮齿折断
B. 齿面塑性变形
C. 齿面胶合
D. 齿面点蚀
在展开式两级斜齿轮圆柱齿轮减速器中，为使中间轴两齿轮的轴向力部分抵消，中间轴上的两个斜齿轮的旋向关系为()。
A. 应使两齿轮旋向相同
B. 任意安排方向都可以使轴向力抵消
C. 应使两齿轮旋向相反
D. 无论怎样安排都不能使轴向力抵消
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