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【单选题】
根据下列材料请回答 175～176 题： （共用题干）患者，女，26岁。有十二指肠球部溃疡5年，突感中上腹部剧烈疼痛6小时，继之满腹疼痛，大汗淋漓，体检：全腹有压痛，肌紧张及反跳痛，考虑有溃疡病穿孔可能。 第175题：下列哪一项体征最有助于溃疡病穿孔的诊断（ ）A.
肠鸣音减弱
B.
肝浊音上界消失
C.
板状腹
D.
腹部移动性浊音（+）
E.
腹式呼吸消失
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【简答题】关于光敏色素作用于光形态建成的机理,主要有两种假说: 作用假说与 调节假说。
【简答题】1 Life in a big city has become more and more difficult for people to cope with. 2 In a big city, stress is caused by fierce competition. 3 Different kinds of public transport makes it convenient for ...
【单选题】Which of the following is true according to John Dewey?
A.
An individual can exercise very little influence on the cultural tradition into which he is born.
B.
Custom is the direct result of the philosophical probings of a group of people.
C.
An individual is strongly influenced by the cultural tradition even before he is born.
D.
Custom represents the collective wisdom which benefits the individual.
【单选题】Which of the following is true according to John Dewey?
A.
An individual can exercise very little influence on the cultural tradition into which he is born.
B.
Custom in the direct result of the philosophical probings of a group of people.
C.
An individual is strongly influenced by the cultural tradition even before he is born.
D.
Custom represents the collective wisdom which benefits the individual.
【多选题】进入化学实验室必要的准备工作有哪些( )
A.
完成预习报告和作业
B.
带好实验指导书、预习报告和学习用品
C.
按要求分好实验小组
D.
了解实验注意事项和安全操作规范
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