某些柴油机连杆大头分开面为斜切口式,其作用是()。
A.越低
B.越高
C.不变
D.剧增
参考答案:C
As a result of floods , huge quantities of good earth_______this year. [ ]
A. is washing away
B. is being washed away
C. one washing away
D. are being washed away
按摩的手法应做到具有节奏性、平稳性,既缓和又灵活,得心应手,刚柔相济,达到“轻而不浮,重而不滞,转换圆滑”的地步。