单项选择题
听力原文：What do you plan to do in the next five years?(A) We've got a tight schedule. (B) Sorry, I can't accept your plan. (C) I have no plan yet.(40)A． B． C．
单项选择题 GM is a measure of（）. ① The initial stability of a vessel. ② The rightingness of the vessel.
多项选择题 工业企业的生产类型有（）。
单项选择题 超高层办公楼常采用塔式，主要原因在于（）。
