女员工仪容仪表应端庄大方,男员工仪表应稳重得体。()
参考答案:对
The worker you had been thinking highly selfish.
A.of proving
B.of proved
C.of to prove
D.of being proved
根据破碎原理分析,下列哪种设备碎矿效率最高。()
A.鄂式破碎机
B.园锥破碎机
C.球磨机
D.自磨机