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问题 单项选择题 案例分析题

某新建办公建筑，地上共29层，层高均为5m，地下共2层，其中地下二层为汽车库，地下一层机电设备用房并设有电信进线机房，裙房共4层，5～29层为开敞办公空间，每层开敞办公面积为1200m2，各层平面相同，各层弱电竖井位置均上下对应，请回答下列问题：

本变电所选择一组220V铅酸蓄电池作为直流电源，若经常性负荷的事故放电容量为9.09A·h，事故照明负荷放电容量为6.82A·h，按满足事故全停电状态下持续放电容量要求，求蓄电池10h放电率计算容量C为下列哪一项？（可靠系数取1.25；容量系数取0.4）（）

A.28.4A·h

B.21.31A·h

C.49.72A·h

D.39.77A·h

答案

参考答案：B

单项选择题

瓷器中青花瓷的主要着色元素是下列哪一种（）

A、铜元素

B、钾元素

C、钴元素

D、铁元素
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单项选择题

Some people make you feel comfortable when they are around. You spend an hour with them and feel as if you have known them half your life. These people have something in common. And once we know what it is, we can try to do it ourselves.
How is it done Here are several skills that good talkers have. If you follow the skills, they’ll help you put people at their ease, and make friends with them quickly.
First of all, good talkers ask questions. Almost anyone, no matter how shy he is, will answer a question. One well-known businesswoman says, "At business lunches, I always ask people what they did that morning. It’s a common question, but it will get things going." From there you can move on to other matters—sometimes to really personal questions. And how he answers will let you know how far you can go.
Second, once good talkers have asked questions, they listen to the answers. This point seems clear, but it isn’t. Your questions should have a point and help to tell what sort of person you are talking to. And to find out, you really have to listen carefully and attentively.
Real listening at least means some things. First it means not to change the subject of conversation. If someone sticks to one topic, you can take it as a fact that he’s really interested in it. Real listening also means not just listening to words, but to tones of voice. If the voice sounds dull, then, it’s time for you to change the subject.
Finally, good talkers know well how to deal with the occasion of parting. If you’re saying goodbye, you may give him a firm handshake and say, "I’ve really enjoyed meeting you." If you want to see that person again, don’t keep it a secret. Let people know what you feel, and they may walk away feeling as if they’ve known you half their life.

After having asked somebody a question, it’ll be polite of you to ______.

A. make clear what kind of person he is
B. listen to his reply attentively
C. wait quietly and patiently for his answer
D. go on asking him more questions
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