考虑治疗的总成本是()
A.药物治疗的安全性
B.药物治疗的有效性
C.药物治疗的规范性
D.药物治疗的方便性
E.药物治疗的经济性
参考答案:E
The classroom is big enough , but we’ll have to move if we have more students.
A.for the moment
B.on the moment
C.in a moment
D.for a moment
科垂尔气团(Cottrell Atmosphere)