包衣缓控释制剂释药原理是 （）
A. 溶出原理
B. 扩散原理
C. 溶蚀与扩散相结合原理
D. 渗透泵原理
E. 离子交换作用原理
听材料，回答下列问题：
A. By spending less on health care.
By feeding less people.
C. By having more work labors.
D. By receiving more donations.
Which of the following accords with the authors view？
A. Charges on patented-drugindustry are anything but true.
B. Generics industry is asheer victim in the competition.
C. Only drug giants are toblame.
D. Exclusion of genericsindustry from taking responsibility is questionable.
听音频：{MP3:/imgcache/attached/media/20140429/20140429171013_3454.mp3} 根据听到的内容回答下列各题
A. The woman should change a new battery.
B. The price of the watch is not reasonable.
C. Smiths Jewelry is a good place to check the watch.
D. Smiths Jewelry sells watch and battery reasonably.
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