题目

. In order to _____ the rising production costs, the subscription rates have been increased. A. add up to B. look up to  C. cut shortD. keep up with   答案：D粉碎国民党反动派划江而治图谋的战役是 [     ]A．辽沈战役B．淮海战役C．平津战役D．渡江战役