下面三幅地图，按一战前夕、冷战时期、冷战之后顺序排列的一组是(    )

B

    In your life, there are a lot of people around you. They are your relatives, neighbors, friends or classmates. Sometimes you get along well with them, but sometimes don't. What can you do when someone hurts you? Most people may be angry or even fight with him. But it's not a good idea. You'd better forget all this and forgive (宽恕) him.

    Maybe it's not easy for you to do that, but it's possible. Please remember: Keep a good mood, and you will keep healthy. Staying angry with others, in fact, means letting others' mistakes treat yourself unfairly.

    How can you forgive others?

    First, think of something pleasant and try to get yourself happy.

    Second, don't wait others to say sorry to you. If anyone hurts you, he won't say sorry to you. He may just want to hurt you or just don't see things the same way.

    Third, try to see things in others' shoes. You can understand their minds better and make yourself a little happier.

    At last, try to know yourself very well. Whose mistakes caused that, yours or others'? If it's your fault (错误), try to say sorry to them. If it isn't, smile at the thing.

已知$\frac{a+2i}{i}=b+i\left(a,b\in R\right)$，其中i为虚数单位，则a+b=（    ）

    It was a very foggy day in London. The fog was so 1 that it was impossible to see more than a foot. Buses, cars and taxis were not able to run and were 2 by the side of the road. People were trying to find their way on foot but were losing their way in the3.

    Mr. Smith had a very important meeting at the Houses of Commons and had to get there but no one could 4 him. He tried to walk there but found he was quite 5 Suddenly he met a stranger. The stranger 6 if he could help him.

    Mr. Smith told him where he would go. The stranger told him he would take him there. Mr. Smith thanked him and started to walk there. They talked about the annoying foggy weather on their way.

    The fog was getting thicker every minute but the stranger had no difficulty in 7the way. He went along one street, turn down another, crossed a square and then after about 8 walk, they arrived. Mr. Smith couldn't understand9 the stranger found his way. “It's wonderful,” he said. “How do you find the way in the fog?”

    “It's no 10 at all to me.” said the stranger, “I am blind.”

下面语段划线处都有语病，请根据提示加以改正。
        与发达地区相比，①重庆中小学生存在矮个多、胖墩多、近视眼多等。挑食、偏食，②形成了一部分学生营养摄入不足，不利于长高。而过多的食用高油、高热和高糖食品，会让无法消耗的能量转化成脂肪，积蓄在体内，形成“胖墩”身材。学生近视眼越来越多，一方面与他们的胡萝卜素、维生素等缺乏有关，另一方面，课业负担和娱乐负担造成用眼过度，③影响危害了视力健康。④有关部门已专门对这一现状进行研究和调查，并寻找相应对策。
①第①处成分残缺，应在句末添加                  。
②第②处搭配不当，应将          改为           。
③第③处词语赘余，应删去                        。
④第④处语序不当，应调整为                      。