综合布线系统中，其下面不属于工作区子系统的是（）。 A.信息插座 B.信息模块 C.

根据如图1实验装置图，回答有关问题．

（1）指出编号仪器名称：①______，②______．

（2）实验室利用A装置可制取氧气，反应的化学方程式为______．

（3）实验室制取并收集氢气应选择的装置是______（从A～E中选择），反应的化学方程式为______，使用该套装置制取气体的优点是______，若用F装置收集氢气，则气体应从______端进入．

（4）用块状石灰石和稀盐酸反应，观察到气泡逸出不明显后，测得试管内残留液的pH如下图中a点所示，向残留液中逐渐滴入碳酸钠溶液，并用pH计连续监测测得的曲线如图2，（pH为纵坐标，时间（秒）为横坐标）．请写出曲线中bc段发生反应的化学方程式：______，cd上升的原因是______．

根据《土方与爆破工程施工及验收规范》GB50201-2012的规定，临时性边坡安全使用年限不超过（）年的边坡。

原发性免疫缺陷病多是由（）

A.参与免疫应答的蛋白成分基因突变所致

B.某些基因所在染色体的大段缺失所致

C.人免疫缺陷病毒感染所致

D.人免疫缺陷病毒诱发的基因突变所致

E.环境中毒素诱导的基因突变所致

实测海岸地形时，海岸线以上向陆地测进：大于（含）1：10000比例尺为图上1cm；小于1：10000比例尺为图上（）cm。

A.1

B.0.7

C.0.5

D.0.3

Do You Need an MBA

Perhaps you have seen the media stories and some of the exciting career opportunities of MBAs, and you imagine, "That could be me ... " You might be well into the career of (26) dreams, but you have been told you will need an (27) to advance. Or, you may be at a (28) in your career and wonder how you should make a translation. (29) of what initially inspired you to consider an MBA degree, you (30) start with a thorough self-assessment process that will help you match your personal strengths and interests with your professional ones to help you explore (31) an MBA makes sense for you.
(32) helps you focus and articulate your thinking. Exhibiting undirected thinking or behavior might (33) you from gaining admission to an MBA program. More importantly, you will limit your return on investment if you (34) choose a school or are ill-prepared to take (35) of its educational opportunities. The MBA is very different from many (36) graduate degrees, in which academic promise is (37) paramount in the admissions process. At a minimum, business school (38) officers consider career history and aspirations, evidence of leadership potential, and academic achievement. (39) the typical MBA candidate has several years of full-time, post-undergraduate work experience in a (40) capacity and can clearly articulate motivations for MBA study.
A good self-assessment process will help you establish specific career and education goals (41) utilize your strengths (42) address your weaknesses. Lacking specific goals, you will be searching (43) direction for a school. How will you eliminate options, much (44) make a choice you will be happy with in the end (45) will you determine whether the MBA experience was a good value Whenever you are considering major changes in your life, self-assessment can help you clarify your goals and make wise decisions.

A. whetherB. whenever C. whateverD. how