题目

取两份铝片，第一份与足量盐酸反应，第二份与足量烧碱溶液反应，同温同压下放出相同体积的气体，则两份铝片的质量之比为( ) A . 3：2 B . 1：1 C . 2：3 D . 1：6 答案：B任务型阅读（共10小题；每小题1分，共10分）According to the Center for Disease Control and Prevention (CDCP)(疾病控制预防中心), if you don't often wash your hands, you will be affected by viruses(病毒) from many places and make yourself ill. You're at risk every time you touch your eyes, nose or mouth. In fact, one of the most common ways people catch colds is by rubbing(揉) their noses or their eyes when there are cold viruses on their hands. If you don't often wash your hands, especially when you're sick, you may spread the viruses directly to others. You should wash your hands in the following situations:◆ After using the bathroom.◆ After blowing your nose or coughing.◆ Before eating, serving or getting ready for food.◆ After going to see anyone who is sick.◆ When your hands are dirty.There's a right way to wash your hands. Follow these simple steps to keep your hands clean.◆ Use neither cold nor hot water.◆ Wash for 15 seconds.◆ Wash well under warm running water and dry them with a clean towel.根据短文内容，在表格中的横线上填写所缺单词，每空填一词。Conditions for spreading VirusesWhen your hands are dirty. When you are   【小题1】 .Time to wash hands After using the bathroom.After blowing your nose or coughing. 【小题2】  having food .After  【小题3】 sick people. When hands are dirty.  【小题4】  way to wash hands Use   【小题5】  water and wash 15 seconds.Then wash well.