题目

完形填空 Different countries have different manners. For example, if youare a1in a Chinese house, when you have a meal,you usually do not2the food. You often leave a little to3that you have had enough. But in England, a visitor always finishes thefood to show that he has4it. We must know the customs of other5, so that they will not think6bad-mannered.People all over the world7that a well-mannered person should be kindand8to others. If you9this,at least you will not go very far wrong.10likesa person with good manners, but no one likes a person with bad manners. （1） A . strange下列各组物理量中，都是矢量的是（　　）A．位移、时间、速度B．速度、速率、位移C．位移、速度、加速度D．路程、时间、位移