题目

--- Did you try to _______the manager to come to attend the lecture? --- Yes. He _______, but he was too busy at that moment. A. recommend, meant to                               B.persuade, meant to have C. suggest, had meant to                               D. request, was meant 答案：B（2009?新洲区）如果2a=b3，那么a：b=1：61：6．