注射剂的pH为()
A.pH4~9
B.pH<4
C.pH=6.8
D.pH4.4~4.8
E.pH3.0~3.5
参考答案:A
Internet shopping will really _____ when people believe that it is safe.
A.take off
B.take up
C.get off
D.get up
被人们认为是实权部门的是()。
A.立法机关
B.行政机关
C.司法机关
D.利益集团