题目

 The classroom is crowded with children         have poor eyesight, all of          interested in painting. A.who, whomB.that, whomC.who, themD.that, who 答案：B做凉拌黄瓜时放入调料后，不久从黄瓜里渗出水来，是因为黄瓜细胞液浓度过高引起。（_______）