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【简答题】
Years ago I worked at a factory in a small county. Every day I got up very early and often did much extra work at night. I was so tired and exhausted. My whole life was hopeless. Then one day I read the following article from a magazine: 'A woman went to live with her husband in camp on the Mojave Desert during the war. She simply hated the place: the heat was almost un-bearable, 125 degrees in the shade, the wind blew incessantly, and there was sand everywhere. Finally, in desperation (不顾一切地) she wrote her parents in Ohio that she couldn't stand it another minute and was coming home. Quickly came the reply by airmail from her father——just two lines: 'Two men looked out from prison bars. One saw the mud, the other saw stars.' The daughter did some real thinking, not only with the intellect (思维) but also with her heart. She decided to stick to her post. She made friends with the natives, learned to love the country, and eventually wrote a book about it. The desert hadn't changed, but her attitude had. Because she listened with her heart  to the words her father sent, a whole new world opened up to her. A change of attitude could change everything. After reading the article, I was deep in thought (陷入沉思)… 小题1:At first, the woman the life with her husband in the desert. A.could stand. B.could accept. C.couldn’t stand. D.couldn’t understand. 小题2:The woman’s father wanted to tell his daughter to . A.look at the mud. B.look at the stars. C.come home. D.stay with her husband. 小题3:The main idea of this passage is that __________. A.a woman went to live with her husband in camp. B.the desert hadn't changed, but her attitude had. C.the daughter's parents wanted her to stay with her husband. D.a change of attitude could change everything. 小题4:After reading the story, the writer may . A.give up the tiring work. B.go to the desert. C.write a letter to father. D.go on the work.
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【多选题】以下对挥发酚测定的说法()是错误的。
A.
4—氨基安替比林在酸性介质中有氧化剂存在时,能与酚类反应成红色染料;
B.
水样中酚含量较低时宜用4—氨基安替比林萃取法测定;
C.
含酚水样采集后,应置于塑料瓶中,加磷酸至pH<4,加lgCuSO4,在4℃可保存24h;
D.
4一氨基安替比林分光光度法测酚,要求空白实验值以三氯甲烷为参比液的吸光值不大于0.1。
【单选题】Which one of the following is the effector cell of B cell?
A.
plasma cell
B.
T cell
C.
Antigen-presenting cells
D.
Macrophage
E.
Memory B cells
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神农氏
B.
扁鹊
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伏羲氏
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华佗
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A.
正确
B.
错误
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A.
正确
B.
错误
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A.
正确
B.
错误
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A.
正确
B.
错误
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A.
溴化容量分析法
B.
紫外光度法
C.
色谱分析法
D.
4-氨基安替比林光度法
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A.
正确
B.
错误
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