小型绝缘剪的长度为()。
A、400mm
B、450mm
C、500mm
D、550mm
参考答案:B
The old man was almost dying, terrified with darkness and loneliness. He really _ love and care.
A.turned up
B.relied on
C.starved for
D.won back
单元制动缸经分解检修组装后,在装车前应在试验台作性能试验。