【判断题】It took about 20 minutes for the technicians to get them out.
【单选题】It took them about one month to ______ how to start the equipment.
【单选题】如图所示平面图形中,尺寸标注错误的有 处。
【单选题】如图所示平面图形中,尺寸标注错误的有 处。
【单选题】It took them about one month to _________ how to start the equipment.
【单选题】It took them about one month to ______ how to start the equipment.
【单选题】It took them about ten days to go _____ the big desert (沙漠). [ ]