问题
单项选择题
在尿液中加入( )，既能抑制细菌生长，又能较好地保存尿中的有形成分，可用于化学成分检查。
A．福尔马林
B．甲苯
C．麝香草酚
D．氯仿
答案
参考答案：C
解析： 每升尿中加入少于1g的麝香草酚，既能抑制细菌生长，又能较好地保存尿中的有形成分，可用于化学成分检查。
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在尿液中加入( )，既能抑制细菌生长，又能较好地保存尿中的有形成分，可用于化学成分检查。
A．福尔马林
B．甲苯
C．麝香草酚
D．氯仿
参考答案：C
解析： 每升尿中加入少于1g的麝香草酚，既能抑制细菌生长，又能较好地保存尿中的有形成分，可用于化学成分检查。
I saw the old man, with his untidy clothes and messy hair, as he dashed between the rows of the department store. He was trying to be ordinary but he was hard not to __21 . He 22 the saleswoman and with a slight 23 , possibly German, asked where the women’s shoes were sold. “Fourth floor.” She responded in a voice I could hear 10 miles away. “Pardon? Where did you say they were?” he asked again, apparently 24 . Clearly the old man was somewhat 25 “Fourth floor, sir,” the friendly saleswoman replied patiently, this time so 26 that customers turned to see what was causing the 27 . I continued watching as the man thanked the saleswoman and 28 for what I assumed was the fourth floor. But rather than walk to the 29 or the lift, he dashed behind a shelf, took out a notebook and started writing hurriedly, with an almost mad 30 on his face. Then he went straight up to another saleswoman and asked where the women’s shoes were sold. Again he asked her to 31 the answer and once more he walked away and took down some notes. He did this three more times before a department store 32 , thinking him mad, removed him from the store. But rather than be 33 , the old man departed with a huge smile on his face. Although the incident was 34 , it was not until a year later, during my first year of university, that I gave it any further 35 . I walked into my language classroom and met my professor. It was that very same man.
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