甲、乙、丙、丁四个旅行团分别有游客69人、85人、93人、97人。现在要把这四个旅行

活髓牙牙体预备后，黏结临时冠时最好选用（）

A.玻璃离子水门汀

B.磷酸锌水门汀

C.聚羧酸锌水门汀

D.丁香油糊剂

E.以上均可

背景:

某施工企业通过投标获得了某机电安装工程的施工总承包任务，该施工企业中标后的第10天与业主签订了固定总价机电安装施工承包合同。随后，该施工企业将部分主体工程分包给具有相应资质条件的分包人，并签订了分包合同。施工总承包合同中约定的合同工期为380天，而依施工工期定额该工程应为360天。在合同的履行过程中，施工总承包单位发现施工图设计文件中提供的某些工程尺寸有误，遂提出更正.

问题：

1)按承包工程的范围不同可将机电工程承包合同分为哪几类?(管理实务p.171)

2)该工程中的分包合同是否成立?为什么?(管理实务p.171)

3)该工程的实际工期为多少天?为什么?(见项目管理课本)

4)如果该工程的工程量增加，那么施工总承包合同的合同价格应如何调整?该工程中的工程量风险和价格风险由谁来承担?(管理实务p.169)

5)简述工程的变更程序。(各方变更要求必须经业主工程师批准方能下发和生效

要实施扩张型的货币政策，中央银行可采取的措施有（）

A.卖出国债

B.提高准备金率

C.降低再贴现率

D.减少货币供应

张医生仅在周一，周二，周三，周五和罔六工作。她要履行四种不同的职责——讲课，动手术，看病和进行研究。每一个工作日的上午和下午她都要恰好履行一项职责。她每周的工作计划必须满足以下条件：她恰好在三个上午实施手术，若她在星期一做手术，那么她在星期二不做手术，她正好在两个连续的下午讲课，她恰好在一个上午和三个下午给病人看病，她恰好在一个上午做研究，在星期六她既不讲课也不做手术=>上午做研究，下午看病

张医生必须在下面哪两天给病人看病

A．星期一，星期五

B．星期一，星期六

C．星期二，星期五

D．星期五，星期六

A proven method for effective textbook reading is the SQ3R method developed by Francis Robinson. The first step is to survey (the S step) the chapter by reading the title, introduction, section headings, summary and by studying any graphs, tables, illustrations or charts. The purpose of this step is to get an overview of the chapter so that you will know before you read what it will be about. In the second step (the Q step), for each section you ask yourself questions such as "What do I already know about this topic" and "What do I want to know" In this step you also take the section heading and turn it into a question. This step gives you a purpose for reading the section. The third step (the first of the 3 R’s) is to read to find the answer to your questions. Then at the end of each section, before going on to the next section, you recite (the second of the 3 R’s) the answers to the questions that you formed in the question step. When you recite you should say the information you want to learn out loud in your own words. The fifth step is done after you have completed steps 2, 3 and 4 for each section. You review (the last of the 3 R’s) the entire chapter. The review is done much as the survey was in the first step. As you review, hold a mental conversation with yourself as you recite the information you selected as important to learn. The mental conversation could take the form of asking and answering the questions fromed from the headings or reading the summary, which lists the main ideas in the chapter, and trying to fill in the details for each main idea.

Which of the following is the fourth step（）

A. To question yourself

B. To read for information

C. To utter your answers

D. To draw a conclusion