A．水；无水CaCl2固体 B．饱和NaHCO3溶液；浓H2SO4 C．浓H2S_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题选择题

A．水；无水CaCl₂固体

B．饱和NaHCO₃溶液；浓H₂SO₄

C．浓H₂SO₄；饱和NaHCO₃溶液

D．饱和NaHCO₃溶液；稀H₂SO₄

答案

B

大理石和盐酸反应得到的气体除CO₂外，还有少量的HCl和H₂O（g），水气的处理一般放在除杂的最后进行。

选择题

汶川大地震牵动着全国人民的心，大灾发生后，与生命救助同等重要的是精神安抚和心理援助。这就告诉我们( )

A．精神决定物质

B．要重视精神的力量

C．物质决定意识

D．精神是第一位的

完形填空

信息匹配（1分X5=5分）
Shanghai is not only the largest seaport city and economic(经济的) center of China, but also the most modern and fashionable international(国际的) city as well. It lies in the east of China and faces the East China Sea.
With a long history, there are many interesting places in Shanghai. It is really a good place to go on vacation. Also being a modern city, Shanghai is a good place to go shopping. You can see many fashionable things there. Walking along Nanjing Road and Huaihai Road, you will have a chance to follow the latest fashion.
I think the best time to Shanghai is in summer. But don’t forget to bring your umbrella because it rains a lot here in summer.
Welcome to Shanghai!

The location(地点) of Shanghai	1. It lies in _____________ and faces the East China Sea.
What to do in Shanghai?	2. Visit _____________.
What to do in Shanghai?	3. _____________________________.
Two famous roads in Shanghai	4. ________________ and Huaihai Road.
What’s the weather like in summer in Shanghai?	5. It___________________ in summer.