A.P
B.P
C.2P
D.4P
答案:C
The young man who we talked a lot about yesterday is unfit for the work, _____?
A.didn’t we
B.did we
C.is he
D.isn’t he
下图是绿色植物体内能量转换过程的示意图,请据图回答:
图中②表示的过程为(),此过程发生的场所是在()