题目

—There are 60 students in my class and 44 of them use weibo veryoften.—44? That means about_______of your classmates are weibo users, right?A．halfB．one thirdC．two thirdsD．three quarters 答案：D解析:考查数词的用法。Half“二分之一”；  one third “三分之一”； two thirds“三分之二”；  three quarters“四分之三”。根据句意“大约四分之三的学生在你们班用微博。” 故选D。小明在劳动过程中腕部受伤，血液喷射而出，你推测一下受伤的血管应该是A．动脉血管 B．静脉血管 C．心脏 D．毛细血管