摩擦离合器润滑方式是（）。
A.不润滑
B.黄油润滑
C.机油润滑
D.干粉润滑
参考答案：A
额定频率：50Hz
额定功率：1100W
容量：1.2L
型号：JKY-12C09C
A．通过电热丝的电流为5A
B．电热丝的电阻为39.6Ω
C．电热丝的电阻为44Ω
D．1s消耗的电能是5.346×104J
Rock-climbing is a breathtaking activity, very popular nationwide among young people,
cooperation as well as courage plays an important role.
A．who
B．which
C．that
D．where
