题目

 —Didn’t your friends play computer games yesterday?    —______________. They watched TV yesterday. A. Yes, they didn’t     B. No, they did    C. No, they didn’t   D. Yes, they did. 答案：C用量筒量取溶液，视线与量筒内液体的凹液面最低处保持水平，读数为15毫升；倒出部分液体后，俯视凹液面的最低处，读数为9毫升．则该学生实际倒出的溶液体积（　　）A．小于6毫升B．大于6毫升C．等于6毫升D．无法确定范围