问题
单项选择题
下列延缓药物水解的方法中，错误的是
A．降低温度
B．降低药物溶解度
C．调节pH
D．改变溶媒
E．增加药物溶解度
答案
参考答案：E
解析：一般地，药物在溶液状态下的水解速度比固体状态下快，若增加药物溶解度则会加速水解，显然E是错误的，除此之外其余选项均是延缓药物水解的方法。应选E。
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下列延缓药物水解的方法中，错误的是
A．降低温度
B．降低药物溶解度
C．调节pH
D．改变溶媒
E．增加药物溶解度
参考答案：E
解析：一般地，药物在溶液状态下的水解速度比固体状态下快，若增加药物溶解度则会加速水解，显然E是错误的，除此之外其余选项均是延缓药物水解的方法。应选E。
I always think my spoken English is so poor that I can’t communicate with native English speakers well. So after going to the college, I take as 36 English lessons as I can. 37 I am free, I go to English corners and 38 English lessons and lectures. To my surprise, I can understand most of 39 of the professors who come from Canada, and the USA. However, I haven’t had more 40 to talk to them in English. Although I 41 English articles out aloud every day, I am not sure if I can make myself 42 by native English speakers. How I hope I can talk to 43 English speakers for a while. I went to the English 44 as usual last night. Surprisingly, there were three foreigners sitting there. There , however, were several Chinese students around them, too. “I must not 45 this chance,” I said to myself. “Hi, nice to meet you.” I 46 to one of them. “Nice to meet you too.” He put out his hand. We 47 hands, what a warm hand! Then I 48 myself to him. When I told him that I had 49 English by myself for three years, he said that it was 50 and my English was so good. His words gave me a lot of 51 . At that time he hadn’t had dinner. He asked us if it was rude or 52 to talk to us while he was eating (a) 53 . We, said we didn’t 54 that, only if he was 55 to talk to us. He smiled and began to eat his supper.
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