【单选题】一组数据 4 、 5 、 6 、 7 、 8 、 29 ,使用何种集中量数表示集中情况其代表性更好
【单选题】There the irrigation canal ____the reservoir(水库)which is very important to the villagers. [ ]
【单选题】Passage Two44.Which of the following statements is CORRECT about the area that spans the length of the West Collect Canal from Cemetry Road to Dean Street?
A.
It used to be the messiest and poorest area along the canal.
B.
It had the largest people flow of all the canal-side streets.
C.
It was changed to a very large extent, compared to its past.
D.
It was the most densely-populated area along the canal.
【单选题】Which canal is very important to Russia
B.
The Bosporus Strait in Turky
D.
The Saint Lawrence Seaway
【多选题】在单一的独立投资项目中,当以项投资方案的净现值小于零时,表明该方案( )。
【单选题】当投资项目的净现值( )时,可以投资该项目。
【简答题】在一组数据3、4、5、5、4、6、7中,这组数据的平均数是( ),中位数是( ),众数是( )。
【单选题】一组数据4、5、6、7、18,使用何种差异量数表示离中趋势其代表性更好____________。
【单选题】一组数据4、5、6、7、18,使用何种差异量数表示离中趋势其代表性更好____________。