题目

Who can think of a situation __________ this idiom can be used? A. which       B. that         C. where           D. in that 答案：C先行词在从句中做地点状语。高等植物由于长期水淹而死亡的原因是A.二氧化碳中毒B.乳酸中毒C.酒精中毒D.细胞吸水过多