問題Ⅲ　　　　の　ところに　何を　入れますか。１．２．３．４から　いちばん　いい　も

化学实验室开放日，小崖和小赳两同学在实验室中配制了如下四瓶溶液：饱和氢氧化钙溶液、饱和碳酸钠溶液、稀盐酸、氢氧化钠溶液，准备进行有关实验．过后发现未将饱和碳酸钠溶液和氢氧化钠溶液的试剂瓶贴上标签，并已混淆，两位同学决定将两瓶溶液鉴别出来．

[提出问题]仅从现有的氢氧化钙溶液和稀盐酸中选择合适的试剂就将饱和碳酸钠溶液和氢氧化钠溶液鉴别出来．

[假设]将混淆的两种溶液分别编号为A、B，假设A为碳酸钠溶液，B为氢氧化钠溶液．

[设计实验方案]两同学分别设计出如下的鉴别实验方案：

Ⅰ将两种溶液取样，分别滴入稀盐酸，根据是否有气泡产生判断各是哪种溶液．

Ⅱ将两种溶液取样，分别滴入饱和氢氧化钙溶液，振荡，根据是否有白色沉淀生成判断各是哪种溶液．

[进行实验]请你参与下列实验过程：

（1）在上述实验方案中选择方案______（填标号）进行实验；小崖指着实验桌上放置的实验仪器如图所示，请回答：本实验不必用到的仪器是：______、______、______（填名称）．同学们拿取所需仪器进行鉴别实验．

（2）同学间默契配合，边实验边填写如下实验报告：

实验步骤	实验现象	结论、化学反应方程式
①将A、B两溶液各取少量，分别放入两支试管中 ②分别滴入少量________，振荡；	A溶液样品中有_________产生	原假设________（填“正确”或“不正确”） 反应的化学反应方程式： ______________________

（3）溶液鉴别完毕，同学们马上将两瓶溶液贴上标签，并检查一下四瓶溶液的瓶塞是否塞紧．小崖解释道：若不将试剂瓶口塞紧，某些溶液，如______溶液（选填一种溶液的溶质的名称）将与空气中的二氧化碳反应发生变质．

回答问题（共3小题；每小题2分，满分6分）

阅读下面短文，根据第58至第60小题的具体要求，尽可能简要回答问题，并将答案转写到答题卡上。

Do you have a goal for life? What's it? Do you want to become a writer, singer or just become a rich person?

A recent survey shows that in modern society, most people pick up practical goals, such as “earning money to buy a house and a car”, “to improve one's life quality”, “finding a good job”.

Wang You worked in a small firm (商行) in Nanjing. The job was good and he didn't have to work for extra hours. However, he felt the work was not exciting at all and the life was boring. So he gave up his job and went to Beijing in February, 2007. When he arrived in Beijing, he set his new goal as finding a good job.

Nowadays more and more people want to live a better life. This fact shows that the society is making progress and people's life goals have become more practical. One researcher says, “Everybody has his/her own life goal, which will be surely different from people to people. If one is poor, one's life goal will be to earn more money; if one doesn't have a diploma, studying hard to get a diploma will become his life goal; and if one doesn't have love, his life goal will be to look for it. But if one has no life goal, he will idle away (虚度) his lifetime. {007}”

58. What will a poor man’s life goal be according to this passage? ( 回答词数不超过4个)

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59.  Why does the writer mention Wang You?     ( 回答词数不超过12个)

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60.  Give a short title for this article. （回答词数不超过6个）

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对输血前血袋中出现不能输注的情况的描述哪一项是错误的（）

A.血浆呈黄褐色

B.血浆呈玫瑰红色

C.血浆呈橙黄色，血细胞沉淀

D.血袋中有较多的泡沫

E.血浆浑浊，有絮状物

汽泵高低压主汽门油控部分动作过程？和试验时动作过程？

9GHZ属于C网波段。