【单选题】分隔肺毛细血管血与肺泡气之间的组织有 ( )
【单选题】Which city has not been praised by IOC after hosting the Olympic Games so far?
【判断题】氟化铵置换滴定法测定铝一般适于铁高铝低的试样(如铁矿石等)或含有少量有色金属试样。此法选择性较高,目前应用较普遍。( )
【单选题】A modern city has been built in______was a small fishing village.
【单选题】A modern city has been set up in _______ was a wasteland ten years ago.
【单选题】A modern city has been set up in ____ was a wasteland ten years ago. [ ]