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问题 单项选择题 A2型题

患者男，56岁，肝硬化腹水，在放腹水的过程中突然出现昏迷，首先采取的措施是（）。

A.吸氧

B.头部降温

C.停止放腹水

D.补充血容量

E.保持呼吸道通畅

答案

参考答案：C

填空题

a. How could I excite my students and show my warmth, so that they could enjoy their study in English I had a deep thought. b. In order to save my face,I just criticized them seriously whenever they talked in class or even moved a little c. It was smile. There was a kindness called smile. It was the most beautiful language in the world. It could make distance disappear. d. Then I realized my frozen eyes made the students seared and my aerious face took any excitement away from the children’s hearts. e. The next day,I stood on the stage with a smiling face, asking questions with a smile and encouraging the children in a friendly way. I could find happiness and excitement in their eyes ! f. I could control the class now, but the atmosphere became strange. No, they were not listening to me. g. It was too quiet. The breathless silence urged me to consider the way I was teaching. h. I remember,five years ago, when I stood at the teacher’s desk for the first time, the students in my class paid no attention to me,didn’t behave themelves at all. I felt helpless. i. Gradually,they got used to my smile and encouragement. The class became a lovely one. I was moved,and said , "Thank you for listening,boys and girls!" j. "Just awake the students with a smiling face"I said to myself.

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问答题

【背景材料】

某建筑工程，建筑面积108 000m2，现浇剪力墙结构，地下3层，地上50层。基础埋深14.4mm，底板厚3m，底板混凝土强度等级为C35。

底板钢筋施工时，板厚1.5m处的HRB335级直径16mm钢筋，施工单位征得监理单位和建设单位同意后，用HPB235钢筋直径10mm的钢筋进行代换。

施工单位选定了某商品混凝土搅拌站，由该项目部为其制定了底板混凝土施工方案。该方案采用溜槽施工，分两层浇筑，每层厚度1.5 m。

底板混凝土浇筑时当地最高大气温度38℃，混凝土最高入模温度40℃。

浇注完成12 h后采用覆盖一层塑料膜一层保温岩棉养护7d。

测温记录显示：混凝土内部最高温度75℃，其表面最高温度45℃。

监理工程师检查发现底板表面混凝土有裂缝，经钻芯取样检查，取样样品均有贯通裂缝。

【问题】

1．该基础底板钢筋代换是否合理？说明理由。

2．商品混凝土供应站编制大体积混凝土施工方案是否合理？说明理由。

3．本工程基础底板产生裂缝的主要原因是什么？

4．大体积混凝土裂缝控制的常用措施是什么？
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