制动加速度绝对值一般不大于（）m/s2。必要时可增设减速制动器。 ["2.0m\/s2<\/sup>","3.0m\/s2<\/sup>","4.0m\/s2<\/sup>","5.0m\/s2<\/sup>"]
《幼儿园工作规程》规定，寄宿制幼儿园中的幼儿每日的户外活动时间不得少于（）。 ["4.5小时","4小时","3.5小时","3小时"]
侦察航空兵
which command allows you to verify the encapsulation type CISCO OR IETF for a frame relay link?（） [" show frame-relay map"," show frame-relay lmi"," show inter serial"," show frame-relay pvc"]
如何对幼儿园教育活动实施有效性进行评价？
简述日负荷曲线和年负荷曲线的慨念。
