20.下列哪一種匯率制度來描述臺灣目前情形最為適合?(A)管理浮動匯率(managed floating exchange rate)(B)聯繫匯率制度(linked exchange rate system)(C)爬行釘住匯率(crawling peg)(D)可調整的釘住匯率制度(adjusted pegged exchange rate)