房地产经纪信息的加工整理程序通常包括鉴别、筛选、()、编辑和研宄五个环节。
A. 分析
B. 整序
C. 集中
D. 调整
实数m，n满足 的充分必要条件是（）。
A. m≠0且n≠0
B. m≠0或n≠0
C. m≠0
D. n≠0
A donkey boiler is also called ()
A. a main boiler
B. an auxiliary boiler
C. an exhaust gas boiler
/s/ and /θ/ can be distinguished by __________.
A. manner of articulation
B. place of articulation
C. vibration of the vocal cords
D. aspiration of articulation
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