问题
单项选择题
不溶性药物应通过几号筛，才能用其制备混悬型眼膏剂（）
A．一号筛
B．三号筛
C．五号筛
D．七号筛
E．九号筛
答案
参考答案：E
解析：
眼膏中的药物，能溶于基质或基质组分者可制成溶液眼膏剂；不溶性药物应先研成极细粉末，并过9号筛，将药粉与少量基质或液体石蜡研成糊状，再与基质混合制成混悬型眼膏剂。故本题答案选择E。
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不溶性药物应通过几号筛，才能用其制备混悬型眼膏剂（）
A．一号筛
B．三号筛
C．五号筛
D．七号筛
E．九号筛
参考答案：E
解析：
眼膏中的药物，能溶于基质或基质组分者可制成溶液眼膏剂；不溶性药物应先研成极细粉末，并过9号筛，将药粉与少量基质或液体石蜡研成糊状，再与基质混合制成混悬型眼膏剂。故本题答案选择E。
In many people’s eyes, middle school students are happy and carefree. But is it the truth? And what 26 students happy or unhappy? To find out students, Li Jiahui , a student in Pinggu No. 3 Middle School, Beijing, spent six months 27 students’ sense of happiness last year. The 28 girl made a survey with questions such as “Are you feeling happy?”and “What makes you unhappy?” After studying the answers from 284 students , Li learned that 29 40 percent of the students felt unhappy , and the 30 from studies was the main for their unhappiness. “More than 50 percent said they were 31 pressure and 70 percent didn’t get enough sleep,”Li said . “It shows that middle school students are not as happy 32 people think. They worry a lot, and they can get angry easily.” Li also said that over 90 percent said their happiness had 33 to do with how much money they have . Instead, they cared about their relationships with friends ,teachers and parents. “Students always feel better when they get 34 well with each other .”Li said . After her survey , Li listed 35 tips that may make students happier, such as : Treat yourself better, be kind and polite to your friends and relatives , and try new things.
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