商品价格构成是有下列要素构成()
A.工资
B.生产成本
C.流通费用
D.税金
E.利润
参考答案:C, D, E
I don’t have to live in the hotel ____ my friend provides a very good place for me.
A.because
B.if
C.until
D.because of
0.1ml破伤风抗毒素过敏试验液含破伤风抗毒素
A.5U
B.150U
C.100U
D.15U
E.1500U