被包于脂肪酸酯中的磺胺的释放速度与酯被水解的难易有关，指出能达到释药最慢的A．单棕榈 发布时间：2018-07-25 23:31 │ 来源：www.tikuol.com 题型：单项选择题 问题： 被包于脂肪酸酯中的磺胺的释放速度与酯被水解的难易有关，指出能达到释药最慢的A．单棕榈酸甘油酯B．双棕榈酸甘油酯C．三棕榈酸甘油酯D．三者相同E．A、B相同
题型：单项选择题 完形填空。 Do you know who invented tea? In fact, tea, the most popular drink in the world ( after water) , was invented by accident. According to an ancient Chinese legend, the Emperor Shen Nong l tea when he was boiling drinking water over an open fire. Some leaves from a nearby bush fell into the water and remained there for some time. The Emperor noticed that the leaves in the water produced a 2 smell. Later he decided to taste the hot mixture. It was quite delicious. And _3 , one of the world's favorite drinks was invented. China is the home of tea, which has more than 4,000 years history. People throughout(遍及) China drink tea daily. 4 the three major drinks-tea, coffee and cocoa, tea is drunk by the largest number of people in the world. Tea from China, along 5__silk and porcelain(瓷器) , began to be known by the world over a thousand years ago and has been an important Chinese export(出口) 6 . Tea leaves are produced mainly in the area south of the Yangtze River, in the provinces of Zhejiang, Jiangxi and Fujian, because of the mild(温暖的) 7 and rich soil there. Longjing, Wulong, Pu'er and Tieguanyin are all 8 _ kinds of tea. Over the past centuries, Chinese people 9__ their unique (特有的) tea culture, which includes tea planting, tea-leaf picking, tea making and so on. Tea is 10 a popular topic which is often mentioned in dances, songs, poems and novels.( )1. A. invented ( )2. A. pleasant ( )3. A. by the way ( )4. A. In ( )5. A. between ( )6. A. at that time ( )7. A. climate ( )8. A. interesting ( )9. A. had developed( )10. A. too B. found out B. pleased B. on the way B. For B. with B. from now on B. weather B. important B. have developed B. as well C. discovered C. bad C. on its way C. Of C. except C. since then C. condition C. famous C. developed C. either D. tried out D. terrible D. in this way D. By D. besides D. since now D. environment D. normal D. are developing D. also 查看答案