第7题: [单项选择]下列关于气雾剂的叙述,错误的是 A. 使用时借抛射剂的压力将内容物喷出 B. 喷出物呈雾状气体溶胶 C. 使用方便,疗效迅速 D. 不能提高药物的稳定性 E. 剂量准确、副作用小 参考答案:D 答案解析:气雾剂系指药材提取物、药材细粉与适宜的抛射剂共同封装在具有特制阀门装置的耐压容器中,使用时借助抛射剂的压力将内容物呈细雾状、泡沫状或其他形态喷出的制剂。因此选项AB都是正确的;此外,气雾剂的特点包括:
第26题: [单项选择]{{B}}Questions 11 to 18 are based on the passage you just heard.{{/B}} A. A math teacher and his student. B. A teacher and his colleague. C. A librarian and a student. D. A student and his classmate. 参考答案:D 答案解析:[听力原文]
M: I heard you got full marks in the English exam. Congratulations!
W: Thanks. I’m sure you