Tom's jacket is black______is blue. [ ]
A. I
B. My
C. Me
D. Mine
答案:D
蟾酥的用量为()
A.0.01~0.03g
B.0.02~0.03g
C.0.02~0.05g
D.0.02~0.06g
E.0.015~0.03g
有机酸