题目内容：
[填空题,2.4分] He made (repeat) efforts to solve the problem.
参考答案：
选择题：[填空题,2.4分] He made (repeat) efforts to solve the
- 题目分类：河南农业大学-大学英语
- 题目类型：选择题
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[填空题,2.4分] I was deeply (impress) by his won
[填空题,2.4分] I was deeply (impress) by his wonderful speech yesterday.
不会引起静定结构产生内力的因素是（ ）
不会引起静定结构产生内力的因素是（ ） A.集中力 B.集中力偶 C.分布力 D.温度变化
两根长度相等、直径不等的圆轴受扭后，轴表面上母线转过相同的角度。设直径大的轴和直径小的轴的横截面上的
两根长度相等、直径不等的圆轴受扭后，轴表面上母线转过相同的角度。设直径大的轴和直径小的轴的横截面上的最大切应力分别为max11和max22，切变模量分别为G1和
在温度变化与支座移动因素作用下静定与超静定结构都有( )。
在温度变化与支座移动因素作用下静定与超静定结构都有( )。
Now the air pollution in this city ______ more and
Now the air pollution in this city ______ more and more serious with each passin