题目

    It is often said that eyes can speak. Do you have such kind of 11 ? In a bus you may look at a stranger, but not too, 12. If he notices that he is being looked at, he may 13 uncomfortable. It is the same in daily life. When you are looked at for several more times, you will look 14 up and down in order to  15 if there is anything wrong with you. If 16 goes wrong, you will feel angry with the person who is looking at you. 17 can speak, right?    Looking too long at someone may seem to be impolite. But sometimes things are 18. If you wish to draw someone's 19 , you may look at him or 在北方的冬季，常见的几种物态变化现象中，属于凝华的是（　　）A．室外冻冰的衣服变干B．房间窗户玻璃的内表面出现冰花C．湖面结了厚厚的一层冰D．正在跑步的人，口中呼出“白气”