对于某些药物制剂不稳定问题，可采取一定的措施来提高药物稳定性，下列操作不能提高药物稳定性的是
A. 凡是在水溶液中证明不稳定的药物，为增大其稳定性可制成乳剂
B. 对湿热不稳定的药物，可以采用粉末直接压片或干法制粒
C. 将维生素C制成微囊可以增大其稳定性
D. 青霉素G钾盐制成溶解度小的普鲁卡因青霉素G，可增加药物稳定性
E. 供注射药物做成注射的无菌粉末，可增加其稳定性
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Officials found that Sandy had managed to flood subway because
A. a bundle of lumber hit through the subway station entrance.
Battery Park didn"t stand a chance to block the violent storm.
C. important infrastructures were built with inferior materials.
D. the height of the concrete wall at an entrance was broken.
在战国、秦汉、南北朝时期，我国精耕细作农业进入成型期，其主要标志是南方水田精耕细作技术体系的形成和成熟。
参考答案：错误
口服制剂溶出速率快慢排列为
A. 包衣片＜片剂＜胶囊剂＜散剂＜混悬剂
B. 混悬剂＜包衣片＜片剂＜胶囊剂＜散剂
C. 胶囊剂＜片剂＜包衣片＜散剂＜混悬剂
D. 散剂＜胶囊剂＜片剂＜包衣片＜混悬剂
E. 片剂＜包衣片＜胶囊剂＜散剂＜混悬剂
The American Congress has all the following power EXCEPT
A. investigating and overseeing executive branch and its agencies.
B. making federal laws.
C. defining two-chamber system.
D. appointing the judges of the Supreme Court.
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