- 搜標題
- 搜題干
- 搜選項
單項選擇題
斗輪機回轉(zhuǎn)工作速度（）.
A、0.1~0.2rpm
B、0.2~0.22rpm
C、0.3~0.22rpm
D、0.11~0.22rpm
A、0.1~0.2rpm
B、0.2~0.22rpm
C、0.3~0.22rpm
D、0.11~0.22rpm
