【单选题】VC和PE多属于哪种企业的资金投资( )
【单选题】-Can Jim paint or sing? -______.
【单选题】---Can Dave paint? ---Yes, he can, ________ he can’t paint very well.
【单选题】关于避孕药的安全性,下列哪项描述不正确()。
【单选题】If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?
A.
2 hours and 24 minutes
B.
3 hours and 12 minutes
C.
3 hours and 44 minutes
D.
4 hours and 10 minutes
E.
4 hours and 33 minutes