题目

You eat _______ junk food. I think you need _______vegetables.      A. too much; much   B. too many; many       C. too much; lots of   D. too many;  lots of  答案：C有甲、乙两金属，甲的密度与乙的密度之比为2比5，甲的质量与乙的质量之比为1比2，那么甲的体积是乙的体积的（ ）A．0.2倍B．5倍C．0.8倍D．1.25倍