未知题型 【背景资料】 某建设单位新建办公楼，与甲施工单位签订施5-总承包合同。该工程门厅大堂内墙设计做法为干挂石材，多功能厅隔墙设计做法为石膏板骨架隔墙。施工过程中发生下列事件： 事件1：建设单位将该工程所有门窗单独发包，并与具备相应资质条件的乙施工单位签订门窗施工合同。 事件2：装饰装修施工时，甲施工单位组织大堂内墙与地面平行施5-。监理工程师要求补充交叉作业专项安全措施。 事件3：施工单位上报了石膏板骨架隔墙施工方案。其中石膏板安装方法为“隔墙面板横向铺设，两侧对称、分层由下至上逐步安装；填充隔声防火材料随面层安装逐层跟进，直至全部封闭；石膏板用自攻螺钉固定，先固定板四边，后固定板中部，钉头略埋入板内，钉眼用石膏腻子抹平”。监理工程师审核认为施工方法存在错误，责令修改后重新报审。 事件4：工程完工后进行室内环境污染物浓度检测，结果不达标，经整改后再次检测达到相关要求。 【问题】 1．事件1中，建设单位将门窗单独发包是否合理?说明理由。 2．事件2中，交叉作业安全控制应注意哪些要点?3．事件3中，指出石膏板安装施工方法中的不妥之处，写出正确做法。 4．事件4中，室内环境污染物浓度再次检测时，应如何取样?

未知题型 物质代谢过程中催化“一碳单位”转移反应的辅酶组成成分是

未知题型 Reading Comprehension (1)When friends come to visit us in the evening, they spend their time telling us they are in a hurry and looking at their watches. It isn't that our friends are all very busy ; it is just that we haven't got a television. People, think that we are very strange. 'But what do you do in the evening ? ' they are always asking. The answer is very simple. Both my wife and I have hobbies. We certainly don't spend our evening staring at the walls . My wife enjoys cooking and painting and often attends evening classes in foreign languages. This is particularly useful as we often go abroad for our holidays. I collect stamps and am always busy with my collection. Both of us enjoy listening to the music and Haying chess together. Sometimes there are power cuts and we no electricity in the house. This does not worry us as we just light candles and carry on with what we were doing before. Our friends are lost—no television!-so they don't know what to do. On such evening our house is very full as they all come to us. They all have a good time. Instead of sitting in silence in front of the television, every-body talks and plays games. Yes, life is possible without television.The author's friends like______ .A．sitting and playing chess in the eveningB．attending classes in the eveningC．Listening to music in the eveningD．watching television in the evening