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问题 选择题

在五边形ABCDE中，若∠A=120°，且其余四个内角度数相等，则∠C等于（　　）

A．60°

B．105°

C．110°

D．115°

答案

∵五边形ABCDE的内角和为（5-2）180°=540°，

∵∠A=120°，

∴其它各角的度数的和为：540°-120°=420°，

又∵其余四个内角度数相等，

∴∠C=420°÷4=105°．

故选B．

单项选择题

车轮上，轮与轴配合的部分称（）。

A.轮缘

B.辐板

C.轮辋

D.轮毂
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单项选择题

Assume the following information relating to a swap agreement. The swap covers a five-year period and involves annual payments on a $1000000 notional principal amount. Party A is the pay-fixed counterparty and agrees to pay a fixed rate of 9% to Party B. In return, Party B, the receive-fixed counterparty, agrees to pay a floating rate of LIBOR to Party()

A.  Party A pays:  A. $87500 each year to Party B. 

B. $90000 each year to Party B. 

C. $2500 each year to Party B.
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