195 Plastic bags are useful for holding many kinds of food, because virtue of their clearness, toughness, and low cost.(X) 196 Mary’s advisor persuaded him to take several courses which did not involve much knowledge of mathematics.( )相关知识点: 试题来源: 解析 正确 反馈 收藏 ...
A. Colleges may take different policies in online courses. B. Some schools allow students to mix online and face-to-face credits. C. Students choose online courses for different purposes. D. Online courses are much easier to pass than traditional course. 查看完整题目与答案 A calorie is a ...