第二题不应该选A吗

第20题解题思路是什么

这道题感觉应该选C啊，为什么会是B?

第17题解题思路是什么

第一年末和第二年末为什么不折成年初的pv?零息债券的mac.D为什么不折成现值?

第8题解题思路是什么

1 2题解题思路是什么

a country with a persistent trade surplus is being pressured to let its currency appreciate,which of the following best describes the adjustment that must occur if currency appreciation is to be effective in reducing the trade surplus A domestic investment must decline relative to saving B foreigners must increase investment relative to saving C global capical flows must shift toward the domestic market

第40题解题思路是什么

in practice,both a fixed parity regime and a target zone regime allow the exchange rate to float within a band around the parity level.the most likely rationale for the band is that the band allows the monetary authority to A be less active in the currency market B earn a spread on its currenty transactions c exercise more discretion in monetary policy