M5卷烟机两对平整盘前后共有()组检查器检查烟丝高度。
A.1
B.2
C.3
D.4
参考答案:B
Even if the judge takes your side,you will have no chance to win the ________.[ ]
A.case
B.support
C.argument
D.charge
过热水蒸汽和干空气的混合物称为()。
A.湿蒸汽
B.干饱和蒸汽
C.饱和空气
D.未饱和空气