Where    go to spend our summer vacation this year?

A．do you think can we

B．do you think we can

C．you think can we

D．you think we can

生马钱子的用量是（）

A．0.002～0.004g

B．0.05～0.1g

C．0.3～0.6g

D．0.03～0.06g

E．0.015～0.03g