锅炉省煤器的管子破裂时，锅筒水位会下降，并且（）不正常地大于蒸汽流
A.蒸汽流速
B.蒸汽压力
C.给水流量
D.给水流速
参考答案：C
_____ we move the picture over there? Do you think it’ll look better?[ ]
A. Until
B. What about
C. As long as
D. What if
墙体混凝土宜在常温下采用喷水养护。
