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【判断题】
大数据是指无法在一定时间范围内用常规软件工具(IT 技术和软硬件工具)进行捕捉、管理、处理的数据集合。A.
正确
B.
错误
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【单选题】关于复利计息与单利计息的说法中，正确的是( )。
A.
复利计息与单利计息均未考虑资金的时间价值
B.
复利计息考虑了本金的时间价值，而单利计息未考虑
C.
复利计息考虑了先前计息周期累计利息的时间价值，而单利计息未考虑
D.
单利计息与复利计息的本质区别在于采用名义利率还是实际利率
【单选题】下列一组描述中错误的是( )。
A.
单利与复利并没有实质上的区别,只是表达方式上的不同而已
B.
利息计算本质上都是复利,采取单利方式只是为了实际计算上的方便
C.
如果要使单利计息与复利计息两不吃亏,单利的利率应高一些,复利的利息应低一些
D.
假设i1为单利利率i,2为复利利率,并令n期末使单利计息与复利计息的本利和相等,可得出单利计息与复利计息两不吃亏的利率关系如下i:2=[(1+i1)n-1]÷n
【单选题】During Ana's flight, the flight attendant was very _______.
A.
angry
B.
nice
C.
No information
【单选题】Electronic devices are allowed to be turned on during flight probably because______.
A.
they have no interference with plane's communications
B.
they are necessary devices to some passengers
C.
the reason to switch them off is different from that of cell-phone
D.
the interference they bring doesn't last long
【简答题】what did he order during his last flight?
【单选题】It is recommended that passengers______ smoke during the flight.
A.
not
B.
need not
C.
could not
D.
would not
【单选题】Some birds that are molting maintain balance during flight by______.
A.
constantly preening and caring for their remaining feathers
B.
dropping flight feathers on both sides at the same time
C.
adjusting the angle of their flight to compensate for lost feathers
D.
only losing one-third of their feathers
【单选题】It was recommended that passengers ______ smoke during the flight.
A.
not
B.
need not
C.
could not
D.
would not
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