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问题 不定项选择
不定项选择
给旱区送水的消防车停于水平面，在缓缓放水的过程中，若车胎不漏气，胎内气体温度不变，不计分子势能，则胎内气体（   ）
A．从外界吸热

B．对外界做负功

B．分子平均动能减少

D．内能增加

答案

答案：A

单项选择题

女性，74岁，两年前诊断肺心病，一周来咳嗽、咳痰、喘息加重，双下肢水肿，体检：肺内多量湿哕音，心率100次/分，肝肋下2.5cm，双下肢水肿。白细胞计数及中性粒细胞分类均增高，血气分析： pH 7.335，PaO250mmHg，PaCO278mmHg，HCO3ˉ34mmol/L,BE 4mmol/L。

该患者目前不存在下列哪种并发症

A．肺部感染

B．心打衰竭

C．呼吸衰竭

D．呼吸性酸中毒

E．呼吸性酸中毒合并代谢性酸中毒
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单项选择题

Questions 14-23


·Look at the ten statements for this part.
·You will hear a passage about "A Research on Sleep ". You will listen to it twice.
·Decide whetheryou think each statement is right(R), wrong(W) or not mentioned(NM).
·Mark your answers on the Answer Sheet.

During the REM period your eyes will move around under the eyelids as if you were looking at something happening in front of you.

A. Right

B. Wrong

C. Not Mentioned
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