青霉素G水溶液不稳定，久置可引起()
A.药效下降
B.诱发过敏反应
C.中枢不良反应
D.A+B
E.A+C
参考答案：D
It's reported that the Underground Line No. 3 in our city in 2012. [ ]
A. will built
B. has built
C. will be built
D. has been built
解释“W/M plus adval的含义（）
A货物重量或尺码
B货物重量加尺码
C货物重量、尺码或价值选较高的
D货物重量或尺码选较高的再加上从价运费
