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问题 单项选择题

矿山工程中，当工程地质条件复杂时，正确的安全工作做法是

A.安排所有技术人员参与管理地压工作，取消专职地压机构

B.一发现有地压活动预兆，就立即停止全部作业

C.通往陷落区和采空区的井巷应及时封闭

D.可以利用滚石区的土地面积，建筑临时设施货构筑物

答案

参考答案：C

完形填空

第二节：语法填空

There are two main reasons   11     the temperature of the air is always      12   （change）. One reason is that the air around you moves in from somewhere else . Air usually moves in large bodies   13     (call) air masses. Some air masses move in from the north. These air masses usually have cold air that cause the temperature 14     (drop).  Air masses also move in from the south. They usually have   15      (warm) air that causes the temperature to rise.

Temperature  changes during the day or night can be great   16       small. This depends partly   17     how many clouds are in the sky.    18      there are many clouds during the night, they act like tile covers on your bed. They blanket the earth and keep the air from losing much of   19     heat. The temperature usually does not drop much during such a night. When there are many clouds during   20       day, some of the sun's energy will not reach the earth. The temperature usually does not rise much on such a day.   
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单项选择题 A1/A2型题

老年患者，长期上腹部疼痛，餐后明显，近期节律性消失，最可能的疾病是（）

A.慢性胃炎

B.胃溃疡

C.胃癌

D.慢性胆囊炎

E.慢性胰腺炎
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