磨矿机一小时处理的原矿量称为()。
参考答案:磨矿机的处理量
The play was not interesting, so there were ________ empty seals in the theatre.[ ]
A) a little
B) a lot
C) many
D) much
如图所示构件I-I截面上的内力是()。
A.N=P,Mt=2Pa
B.N=-P,Mt=2Pa
C.N=P,Mt=Pa,M=Pa
D.Q=0,M=2Pa