题目

下列三种物质体积相同，那么质量最重的是（ ）。 A . 水 B . 食用油 C . 水银 答案：C ―Do you have anything to do this afternoon?         ―What’s up?     ―Let’s go shopping. It’s said that Jinying Shop _____, and all the sweaters are sold at half price.         ―Why not?               A. has closed down                             B. was closing down C. closes down                                   D. is closing down