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问题 单项选择题

下列关于折价率的公式，不正确的是（）

A.折价率=（二级市场价格/基金份额净值-1）×100%

B.折价率=（二级市场价格-基金份额净值）/基金份额净值×100%

C.二级市场价格/基金份额净值-1=（二级市场价格-基金份额净值）/基金份额净值

D.折价率=（二级市场价格/基金份额净值+1）×100%

答案

参考答案：D

解析：折价率=（二级市场价格/基金份额净值-1）×100%=（二级市场价格-基金份额净值）/基金份额净值×100%。

单项选择题

加工斜齿轮时，插齿刀的铲形齿轮是与被切齿轮螺旋角大小（）的斜齿轮。

A.相等、旋向相同

B.不等、旋向相反

C.相等、旋向相反
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单项选择题

One of the most widely used routing protocols in IP networks is the Routing Information Protocol(RIP)．RIP is the canonical example of a routing protocol built on the (71) algorithm．Routing protocols in internetworks differ slightly from the idealized graph model．In aninternetwork，the goal of the routers to forward packets to various (72) ．
Routers running RIP send their advertisement about cost every (73) seconds．A router also sends an update message whenever an update from another router causes it to change itsrouting table．
It is possible to use a range of different metrics or costs for the links in a routing protocol．RIP takes the simplest approach，with all link costs being equal (74) Thus it always tries tofind the minimum hop route．Valid distances are 1 through (75) ．This also limits RIP torunning on fairly small networks．

A．10
B．30
C．60
D．180
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