小煤窑一般都是人工开采、沿煤层挖成网格状的煤巷，下列哪些现象是小煤窑产生地面塌陷的主

发布时间：2017-07-24 02:17 │ 来源：www.tikuol.com

题型：多项选择题

问题：

小煤窑一般都是人工开采、沿煤层挖成网格状的煤巷，下列哪些现象是小煤窑产生地面塌陷的主要特征( )

A．地表产生小规模的移动盆地

B．采空区顶板厚度薄的常产生突然塌陷

C．采空区顶板厚度厚的常产生地面开裂

D．采空区顶板全为岩层、埋深超过60m的，地表很少变形

考点：注册土木工程师岩土工程专业知识注册岩土工程师专业知识下午试卷

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下列有促进乳汁分泌作用的项目是（）

A.吸吮动作

B.前列腺素

C.大剂量雌激素制剂

D.孕激素制剂

E.口服溴隐亭

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在有溶解氧存在的条件下，金属在中性溶液中的腐蚀过程是一个（）反应。

A.氧化

B.还原

C.氧化还原

D.电化学

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建设工程项目、由于建设方拖欠施工单位工程款近千万元。因此，工程竣工后，建设单位无法办理房屋交工及竣工验收手续。施工单位拒绝移交工程技术档案（含竣工图）。于是，建设单位便请人编制了竣工图，并且冒名在竣工图章内签署了监理单位总监、现场监理和施工单位技术负责人、编制人的名字，并以此竣工图在规划部门骗取了竣工规划手续。针对此类案例，你如何解决这个问题？

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对T10说法正确的是（）

A.是优质碳素结构钢

B.碳素工具钢.

C.碳素结构钢

D.铸造碳素钢

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任务型阅读。
请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入最恰当的单词。
注意：每空格1个单词。

     Teamwork is just as important in science as it is on the playing field or in the gym. Scientific investigations (调查) are almost always carried out by teams of people working together. Ideas are shared, experiments are
designed, data are analyzed, and results are evaluated and shared with other investigators. Group work is
necessary, and is usually more productive than working alone.
     Several times throughout the year you may be asked to work with one or more of your classmates.
Whatever the task your group is assigned, a few rules need to be followed to ensure a productive and
successful experience.
     What comes first is to keep an open mind, because everyone's ideas deserve consideration and each group
member can make his or her own contribution. Secondly, it makes a job easier to divide the group task among
all group members. Choose a role on the team that is best suited to your particular strengths. Thirdly, always
work together, take turns, and encourage each other by listening, clarifying, and trusting one another. Mutual
support and trust often makes a great difference.
     Activities like investigations are most effective when done by small groups. Here are some more suggestions for effective team performance during these activities: Make sure each group member understands and agrees
to the task given to him or her, and everyone knows exactly when, why and what to do; take turns doing
various tasks during similar and repeated activities; be aware of where other group members are and what they
are doing so as to ensure safety; be responsible for your own learning, though it is by no means unwise to
compare your observations with those of other group members.
     After you've completed a task with your team, make an evaluation of the team's effectiveness-the strengths and weaknesses, opportunities and challenges.

Title	Working together
Theme	Effective performance needs highly cooperated 1 .
Importance	Group work is necessary, and is often more productive than working 2 your own.
General rules needing 3	Keep an open mind to everyone's 4 . Divide the group task among group members. 5 and trust each other.
6	Understand and agree to the 7 task of one's own. Do various tasks in 8 . Show concern for others to ensure safety. Take 9 for one's own learning. Compare your own observations with those of others.
Evaluating effectiveness	Analyze the 10 and weaknesses. Find out the opportunities and challenges.

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