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初级生产（Primary Production）

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人口结构性矛盾突出的表现是什么？

背景某施工单位承建了天津市某医院门诊楼工程。地下2层、地上16层，钢筋混凝土筏板基础，地上结构为钢筋混凝土框架结构，墙充填为普通混凝土小型空心砌块。施工过程中发生如下事件：事件一：本工程基坑深8.5m，北侧紧邻某住宅楼。经专家论证后的方案采用围护桩墙+预应力锚杆支护体系。整个施工过程对围护体系实施连续变形监控，对于围护桩墙顶位移监控值，施工单位与监理发生分歧，施工单位认为按二级基坑监控，监理坚持按一级基坑进行监控。事件二：基础工程施工完成后，在施工单位自检合格、总监理工程师签署“质量控制资料符合要求”审查意见的基础上，施工单位项目经理组织项目技术、质量负责人、总监理工程师进行了地基与基础分部工程的验收。事件三：普通混凝土小型空心砌块墙体施工时，施工人员先将小砌块充分浇水湿润，再将砌块底面朝上反砌于墙上；外墙转角处的临时间断处留直槎，并砌成阴阳槎，并设拉结筋。监理工程师认为施工方法错误，立即下发了整改通知。事件四：地上框架结构存在主次梁，在主次梁交汇处，关于钢筋摆放上下顺序监理与施工技术员在理解上发生分歧，随后上报总监理工程师处理。指出事件三中的不妥之处，并给出正确做法。

在进行套期保值时，在规避对己不利的价格风险的同时，也放弃了因价格可能出现对己有利的价格机会，即如果买入套期保值，反而能够获得更大的利润。

A. 正确
B. 错误

Literacy Volunteer Last summer I went through a training program and became a literacy volunteer （扫盲志愿者）. The training I received， though excellent， did not tell me how it was to work with a real student， however. When I began to discover what other people's lives were like because they could not read， I realized the true importance of reading. My first student Jane was a 44-year-old single mother of three. In the first lesson， I found out she walked two miles to the nearest supermarket twice a week because she didn't know which bus to take. When I told her I would get her a bus schedule， she told me it would not help because she could not read it. She said she also had difficulty once she got to the supermarket because she couldn't always remember what she needed. Since she did not know words， she could not write out a shopping list. Also， she could only recognize items by their labels. As a result， if the product had a different label， she would not recognize it as the product she wanted. As we worked together， learning how to read built Jane's self-confidence， which encouraged her to continue in her studies. She began to make rapid progress and was even able to take the bus to the supermarket. After this successful trip， she reported how self-confident she felt. At the end of the program， she began helping her youngest son， Tony， a shy first grader， with his reading. She sat with him before he went to sleep and together they would read bedtime stories. When his eyes became wide with excitement as she read pride was written all over her face， and she began to see how her own hard work in learning to read paid off. As she described this experience， I was proud of myself， too. I found that helping Jane to build her self-confidence was more rewarding than anything I had ever done before. As a literacy volunteer， I learned a great deal about teaching and helping others. In fact， I may have learned more from the experience than Jane did. I once could not read.（）

A. True
B. False
C. Not Give