题目

It’s ______ cold today, but I have still finished ______ homework.    A. too much; too much             B. much too; much too C. too much; much too             D. much too; too much 答案：D（2005?镇江）肥皂水的pH＞7，肥皂水呈性，能使无色酚酞试液变色；白醋的pH＜7，白醋呈性，能使紫色石蕊试液变色；溶液的pH越，则溶液的酸性越强；溶液的pH越，则溶液的碱性越强．