题目

     第二卷(共35分) 第四部分：写作(共两节，满分35分) 第一节：任务型阅读 （共10小题；每小题1分，满分10分） 认真阅读下列短文，并根据所读内容在文章后表格中的横线上填入最恰当的单词。 注意：每空只填一个单词。 There are a number of languages spoken throughout the world. Every person knows at least one language, which he learns in his childhood and is routinely used for speaking and writing. However, many people are fond of learning two or more languages, so they try to be bilingual, which means that 11．如图电路中电源电压保持不变，只闭合开关S2时，电压表的示数为6V；只闭合开关S1时，电压表的示数为2V，求：（1）电源电压是多少？（2）闭合开关S1、S2时，电压表的示数是多少？（3）只闭合开关S1时，L1两端的电压是多少？