采用溴量法测定含量的药物是
A．硫酸苯丙胺及制剂
B．盐酸酚妥拉明及制剂
C．盐酸去甲肾上腺素
D．盐酸苯乙双胍及制剂
E．盐酸甲氧明及制剂
参考答案：C
Father together with his good friends was________to go out for a camp________it began to rain. [ ]
A. hardly; than
B. around; as
C. about; when
D. nearly; while
对于非溶性液体火灾，当采用液下喷射泡沫灭火时，必须选用氟蛋白、成膜氟蛋白或水成膜泡沫液，泡沫液的储存温度应为（）℃。
A.0～20
B.0～25
C.0～40
D.0～50
