题目

22. —May I keep your company there? —You may_________. A.if you like                      B.as you like C.if you’d like                     D.if you like to 答案：A 解析: if you like为习惯用法，此处省掉了to keep my company。 答案：A下列分子的空间构型为正四面体的是（　　） A、甲烷B、苯C、乙烷D、乙烯