弯曲变形的位移有两种,他们是()
A.挠度和弯度
B.弯度和转角
C.转角与倾斜度
D.挠度与转角
参考答案:D
天然放射性元素放出的α、β、γ三种射线的贯穿本领各不相同,图1为这三种射线贯穿物体情况的示意图,①、②、③各代表一种射线,则①为______射线,它的贯穿本领很弱;③为______射线,它的贯穿本领很强.
33. The computer was damaged _________his carelessness.
A.in case of
B.because
C.as well as
D.as a result of