以皂苷为主要成分的中药材,一般不宜制成注射剂,其原因是( )。
A.溶血性B.不稳定C.难溶解D.刺激性E.有泡沫
参考答案:A
解析:皂苷水溶液大多数能破坏红细胞而有溶血作用。
“Who needs a shopping mall (购物中心)if you have Taobao ?” says Wang Lin , 28 , a\ writer in Beijing . Taobao , China’s largest online shopping site (网上购物网站), has become an important part of Wang Lin’s life . She spends lots of money on Taobao. A growing number of Chinese Internet users like Wang have found the joys of online shopping . Most online shoppers are students or young workers . More women shop on line then men. Clothing and home-use products are the most popular online. It was reported that more than 250 billion yuan was spent on online shopping last year,80% through Taobao . Taobao means “looking for treasure” in Chinese. People can find almost everything they need on Taobao, from clothes to books ,from candies to DVD players .
小题1:What are the most popular online?
A. Candles and DVD players B. Clothes and books.
C. Clothing and home-use products. D Treasure
小题2:Taobao is ____________.
A.a shopping mall
B.an online shopper
C.an online shopping site
D.A kind of treasure小题3:Most online shoppers are ________.
A. young B. old C. babies D Men
下列()活动属于微观物流。
A.企业物流
B.生产物流
C.国民经济物流
D.全球物流
E.粮食物流