剪应力互等定理只适用于()。
A.纯剪切应力状态
B.线弹性范周
C.单元体上两个相互垂直平面上的剪应力分析
D. 受剪切的构件
参考答案:C
—Tom, would you please pass the glasses to me? I can ________ see anything on the blackboard.
—Sure. Here you are. [ ]
A. nearly
B. quickly
C. hardly
D. almost
双面双层DVD的容量最大为()