张师傅第一个月生产了180个零件,合格率是95%,第二个月生产了240个零件,合格率是90%,张师傅两个月共生产了多少个合格零件?
180×95%+240×90%=387(个)
.---It is said we may have got the result of the exam by the end of next month, won’t we?
---Sure. ___________.You’ll be informed in time.
A.With pleasure
B.No wonder
C.It doesn’t matter
D.Take your time
1吨石头肯定和1000千克纸一样重.______.