对于大起重量起重机,钢丝绳偏斜角应控制的小些,可取A≤()。
A、35°~40°
B、5°~6°
C、4°~5°
D、2°
参考答案:C
---The TV is too noisy, would you mind a little, please? ---Sorry, I will do it right away.
A.turning it off
B.turning it on
C.turning it down
D.turning it up
开放性损伤不包括
A.擦伤B.挫伤C.切伤D.裂伤E.皮肤脱伤