问答题简答题：地下空间有哪些优缺点？

题型：阅读理解

阅读理解。
If the eyes are the windows of the soul, then the body is the mirror of our feelings.If we are feeling great, we may give our body signals(信号).lf we look at someone else's body, we can often tell how they are feeling by their body signals. So reading body language signals is a great tool in daily communication.
In case(假使) you don't think that learning how to read and use body language is important, here are some numbers for you. 7% of the information we receive is from what people actually say, and 38% of the information we receive is from the tone(语气) and the speed of their voice; while 55% of the information we receive is from their body language. These non-verbal(非口头的) signals will help you a lot, but you still need to focus on what people are saying. If you focus too much on their body language signals, you and the person may feel uncomfortable.
It is useful to be able to read people's body language, but it is useful to learn how to send the right signals and avoid the wrong signals, too. Body language may be given several interpretations. Many signals have different meanings, depending on the person and the situation. Be sure of it when you are trying to read a body language signal.
1. The numbers mentioned in the second paragraph are to_______.
A. explain what body language is B. show the importance of body language C. tell us body language is less used than verbal language D. tell us body language is the only tool in communication
2. What is the meaning of the underlined sentence in the last paragraph?
A. Body language is widely used all over the world. B. Body language can be explained in different ways. C. It's too hard to understand the meanings of body language. D. People have already looked through many books on body language.
3. According to the writer, body language is very _______.
A. simple to learn B. negative to be used C. hard to understand D. helpful in communication
4. According to the passage, which of the following is TRUE?
A. Body language is uncomfortable. B. What people are saying is not important. C. Body language can show your emotion. D. To send wrong signals is not body language
5. We can infer(推断) that the writer will most probably talk about_______ next.
A. what the wrong body language signals are B. examples of how to understand body language correctly. C. numbers about how many people wrongly use body language D. an analysis(分析) of why people wrongly understand body language

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题型：选择题

现有锌、铜、银三种金属，要验证这三种金属活动性强弱，最好使用的试剂是

A．硫酸铜溶液

B．硫酸锌溶液

C．硝酸银溶液

D．稀盐酸

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题型：单项选择题 A1型题

镉在体内主要的蓄积部位是（）

A.骨髓、肾脏

B.肝脏和肾脏

C.肺部和肝脏

D.神经组织和消化道

E.脑和肾脏

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题型：单项选择题案例分析题

2011年8月，李某入职甲软件公司（以下简称甲公司）担任销售总监，双方签订了为期2年的劳动合同。劳动合同约定：李某在终止劳动合同后3年内不得在同行业公司中从事与原职位相关的活动。2013年初，李某向甲公司提出解除劳动合同，李某的理由是：他履行劳动合同己经超过1年，甲公司没有按劳动合同约定提供劳动条件，而且他也不满意约定竞业限制的内容，现在他提前30日以书面形式通知甲公司解除劳动合同，甲公司不应该反对。李某未办理解除劳动合同手续就入职乙软件公司（以下简称乙公司）担任销售总监。甲公司获知后，公司领导与李某和乙公司联系，希望李某回公司工作，但乙公司以已签订劳动合同为由，坚决不放李某。于是，甲公司向劳动争议仲裁委员会提起仲裁申请，要求李某和乙公司承担赔偿责任。

关于竞业限制期限的说法，正确的是（）

A.甲公司与李某签订2年期限的劳动合同，可以约定2年以上竞业限制期限

B.甲公司与李某约定的竞业限制期限不得少于3年

C.甲公司与李某约定的竞业限制期限不得超过2年

D.甲公司支付李某竞业限制经济补偿的期限可以短于竞业限制期限

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题型：单项选择题

下面选项中不属于存储和传递信息的实体是（）

A.光盘

B.磁带

C.网络

D.书本

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地下空间有哪些优缺点？

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