【单选题】Try to _______ half an hour every day for something you really enjoy doing. [ ]
【判断题】非周期信号可以理解为周期为无穷大的周期信号:
【单选题】It's getting dark. We'd better _____ in a hotel for the night. [ ]
【简答题】梁尺寸如图 7-4-11 所示,箍筋配置如图 7-4-12 所示,间距200mm,梁两端各1500为加密区间距100mm,计算箍筋根数。
【单选题】梁尺寸如图7-4-11所示,箍筋配置如图7-4-12 所示,间距200mm,梁两端各1500为加密区间距100mm,则共有箍筋( )。
【判断题】坚强智能电网是安全可靠、经济高效、清洁环保、透明开放和友好互动的电网。( )
【单选题】'You'd better ______ some money for emergency', she told me.
【单选题】People a monument to honour those people who devoted their lives to their country.
【单选题】少林拳完成时间不足或超出规定时间( )秒以内,扣0.1分。