题目： 毛管水 答案： 参考答案：对于单个土粒，只能依靠分子力吸附水分，但对于由许多土粒集合而成的土壤，其连续不断的孔隙相当于毛细管，因此还存在一种毛管力，依靠毛管力保持在土壤中的水分称为毛管水。按水份供给情况不同，分悬着毛管水和上升毛管水。
题型：选择题 You eat _________ food and you are _________ fat now. [ ]A. much too; much too B. much too; too much C. too much; too much D. too much; much too 查看答案
