管壳式换热器,宜走管程的流体介质是()
A.易腐蚀的流体
B.有泄漏危险的流体
C.要求经换热器后压力损失小的流体
D.流量大的流体
参考答案:A
Our head teacher keeps telling us that the future ________ to the well-educated.
A.belongs
B.is belonging
C.will be belonged
D.is belonged