题目

What a table! I’ve never seen such a thing before. It is _____ it is long.   A. half not as wide as           B. wide not as half as   C. not half as wide as           D. as wide as not half 答案：C 解析: 表示倍数或几分之几的词放在as…as前。已知集合M={x|x2＜4}，N={x|x2-2x-3＜0}，则集合M∩N=______．