较易发生氧化降解的药物是（）
A.青霉素G
B.头孢唑林
C.肾上腺素
D.氨苄青霉素
E.乙酰水杨酸
参考答案：C
入汤剂应烊化的药物是（）
A.熟地黄
B.阿胶
C.鳖甲
D.白芍
E.当归
It is hard for the Greek government to get over the present difficulties_________ gets more financial support from the European Union.
A．if
B．unless
C．because
D．since
