进、排气门在排气上止点时（）
A.进开、排关
B.进关、排开
C.全关
D.全开
参考答案：D
－What do you think of the talent show in our school?
－ I think teachers in Grade Two were ___________ act _____ all.
A．the funniest ; in
B．the best; of
C．the goodest; in
D．the most good; of
店铺的外观设计必须遵循两个原则，这就是（）。
