液力端柱塞盘根压帽上得过紧会加速柱塞表面的磨损。()
参考答案:对
I guess Tom won’t keep on asking me the time from now on, as he has had ______.
A.his watch repaired
B.his watch repairing
C.repaired his watch
D.repair his watch
在结构图中,程序的调用方式有三种:顺序调用、______、循环调用。