在离心式压缩机中，气体从（）进入，由于叶轮的旋转而被高速甩出。
A.吸气阀
B.轴向
C.径向
D.叶轮
参考答案：B
At present, one of the apartments in favor of the new airport ________ that it will going a lot jobs to the area.
A．is
B．are
C．will be
D．were
晚发先天性骨梅毒临床上常见有_________、______、________、________、__________和___________等。
