什么是最大起重量?
参考答案:
在设计规定安全系数内的极限起重量。
Next door to ours _________, who has just return from abroad.
A.where lives an old man
B.lives an old man
C.where does the old man live
D.does an old man live
WBKQ-01B的微机电源切换装置的正常工作电源()V