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某立井井筒井深815m，净直径7．5m，井筒基岩段井壁厚度600mm，混凝土强度等级C40。一施工单位承担了该井筒的施工，所采用的砌壁模板为金属整体液压下移式伸缩模板，高度4．Om，且可拆解均分为两段。

施工中，受断层和岩层倾角变化的影响，井筒提前进入了泥岩破碎带段。因工期紧张和材料准备不足，项目经理仍按原施工方案继续组织施工。在爆破后出渣时，发现井帮岩石风化现象严重，暴露高度l．Om时即出现多处片帮。强行出渣至一个浇筑段高4．Om后，工作面立即绑扎钢筋，绑扎过程中，发生了更严重的片帮垮落，致使一工人腿部骨折。工作面经简单处理后，继续绑扎钢筋至完成，然后下放模板并浇筑混凝土。在浇筑混凝土过程中，施工作业人员发现模板后面有声响，井帮继续有片帮垮落，但混凝土浇筑工作未停止，直至结束。后经拆模检查，井壁多处出现蜂窝麻面和孔洞，该段井壁验收时被认定为不合格。

1．该井筒掘砌施工中存在哪些问题?2．解决井筒破碎带片帮问题，应考虑哪些技术原则?3．针对该井筒的工程条件，通过破碎带可以采取哪些具体措施?4．该井筒不合格段井壁应如何处理?

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There are many ways to find a job. It can be as easy as w  小题1:  into a neighborhood shop to look at its announcement(通知) board. Local shops often have a  小题2:  where people can put small signs telling what kind of service they need or can provide. Such services include c  小题3:  for children or cleaning houses.

Or, job searchers can look in the newspaper. Local newspapers have employment（招聘） announcements placed by companies looking for workers.

Another p  小题4:  tool for finding jobs is the Internet. For example, people in four hundred and fifty cities around the world can use the Craigslist Web site to buy things, meet people or find a job. Craigslist says that it r  小题5:  two million new job listings each month.

Another useful way to find a job is t  小题6:  a college or university. For example, students at the University of Texas in Austin can go to the Career Exploration Center to get help in finding a job. Of course, looking for a job r  小题7:  knowing what kind of work you want to do. For example, there is a book called “What Color is Your Parachute?” by Richard Bolles. This book has been helping people c  小题8:  a career since it was first published(出版) in nineteen seventy.

Some experts also help people find jobs. Susan W. Miller o  小题9:  a company called California Career Services in Los Angeles. She says her company helps people find jobs by first helping them understand their strengths, goals and i  小题10:. Then she provides them with methods and resources(资源) to help them find the right job.
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单项选择题

用于最大化激活窗口的宏命令是______。

A．Minimize

B．Requery

C．Maximize

D．Restore
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