【单选题】They put forward a lot of plans at the meeting, none of _________ carried out in their work.
【判断题】1989年3月,国家旅游局在全国范围内推行了第一次全国导游人员资格考试。( )
【判断题】若系统的总动量为零,则系统中每个质点的动量必为零。
【单选题】国家旅游局在全国范围内第一次推行导游资格考试是在 () 年。
【简答题】__________ (由于篇幅所限), I had to leave out a lot of excellent materials.
【判断题】若系统的总动量为零,则系统中每个质点的动量必为零。
【简答题】To get a chocolate out of a box requires a lot of unpacking: the box has to be taken out of the paper bag in which it arrived, the cellophane (玻璃纸) wrapper has to be torn off, the lid opened and the p...
【单选题】They put forward a lot of plans at the meeting, but none of _______ were carried out in their work.
【单选题】---- There is a lot of smoke coming out of the teaching-building there. ---- Really? It _____ be a fire, most probably.
【单选题】国家旅游局在全国范围内第一次推行导游资格考试是在 年