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题目：
未知类型
打眼工打眼前应确认()
A.顶帮迎头无危岩活石
B.风钻完好
C.钻机钎杆完好
D.瓦斯符合要求，退路畅通
E.管线畅通
答案：
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某居民搬进新装修的房屋居住后，其家庭成员常出现流泪、胸闷，最可能的原因是（）
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采用浇水养护时，在已浇筑混凝土强度达到（）以后，方可允许操作人员行走、安装模板及支架等。
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社会主义市场经济条件下加强医学伦理教育的必要性主要决定于（）
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IEEE802.2标准定义的LLC帧格式()。
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As Christmas is coming, there are presents to be bought, cards to be sent, and rooms to be cleaned. Parents are ___1___ with difficult jobs of hiding presents from curious young children. If the gifts are large, this is sometimes a real ___2___. On Christmas Eve, young children find the excitement almost unbearable. They are torn between the wish to go to bed early so that Father Christmas will bring their presents quickly and the wish to stay up late so that they will not miss the fun. The wish for gifts usually proves stronger. But though children go to bed early, they often lie awake for a long time, hoping to get a short ___3___ at Father Christmas. Last Christmas, my wife and I successfully hid a few large presents in the storeroom. I ___4___ the moment when my son, Jimmy, would ask me where that new bike had come from, but ___5___ he did not see it. On Christmas Eve, it took the children hours to go to sleep. It must have been nearly ___6___ when my wife and I went quietly into their room and began filling stockings. Then I pushed in the ___7___ I bought for Jimmy and left it beside the Christmas tree. We knew we would not get much sleep that night, for the children were ___8___ to get up early. At about five o’clock the next morning, we were woken by loud sounds coming from the children’s room — they were shouting excitedly! Before I had time to get out of bed, young Jimmy came riding into the room on his new bike, and his sister, Mary, followed close behind pushing her new baby carriage. Even the baby arrived. He moved ___9___ the hands and knees into the room dragging a large balloon behind him. Suddenly it burst. That woke us up ___10___. The day had really begun with a band! ___8___内应选（）
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将整个事件思考了一遍，简爱感到（）。
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已知298K时丙酮酸CH3COCOOH(1)、乙醛CH3CHO(g)二氧化碳CO2(g)的标准摩尔生成吉布斯函数分别为：一463．38、-128．86和-394．36 kJ.mol-1。计算丙酮酸在酵母羰化酶催化下分解反应
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胃癌最主要的转移方式是（）
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推进智能电网建设，有利于对电力系统的（）和（），提高系统运行的稳定性和能源供应的可靠性。
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凡有下列情况应考虑中耳癌可能的是：（）