题目

目前世界上比较先进的电解制碱技术是离子交换法，如图为阳离子交换膜法电解饱和食盐水的原理示意图。（1）下列说法不正确的是（   ）A．从E口逸出的气体是H2B．从B口加入含少量NaOH的水溶液以增强导电性C．标准状况下每生成22.4 L Cl2，便产生2 mol NaOHD．粗盐水中含Ca2+、Mg2+、Fe3+、SO42-等离子，精制时先加  Na2CO3溶液（2）现有离子交换膜A和B将电解槽分为I、II、III三个区域（下图所示），在这种电解池中电解Na2SO4溶液可制得氢氧化钠、硫酸等物质第一节：阅读下面一篇短文，判断下列句子是否符合短 文内容，符合的用” A”表示，不符合的用” B”表示。    Japan is a food heaven. You can find food from different countries worldwide in this island nation. It is also very good at mixing foreign food with its own traditional food. Besides,you may even find some food which can only be found in Japan. One of them is called " Okosama Lunch".    In most department stores in Japan,there are many restaurants on the top floor of the building. No matter what kind of food they serve,they usually have a menu for ”Okosama Lunch". Although called a lunch,it is served at suppertime.   "Okosama Lunch" was invented in 1930 by Taro Ando. He was a chief manager (总经理) of the Mitsukoshi Department Store,the most famous department store in Japan founded in 1673.Ando came up with an idea to put different kinds of food on one plate and decorate it nicely. The plate usually has special rice with the country's national flag on top.    The detail of this special menu is different from restaurant to restaurant. Thus,there are different types of n Okosama Lunch" across the country. But they are all designed to attract kids.   Now you can find ”Okosama Lunch” anywhere in Japan. At some restaurants,they usually serve it only to kids under ten years old. Next time you visit Japan,you should try this special menu and enjoy Japanese food culture.41. People can find food from different countries in Japan.42. A manager called Taro Ando invented M Okosama Lunch" in 1673.43. People can only enjoy ”Okosama Lunch” at lunchtime.44. At some restaurants,only kids under ten years old can have "Okosama Lunch” .45. We can enjoy this kind of food " Okosama Lunch" in many countries around the world.