货币比率基本由市场供求决定，但各国中央银行对外汇市场也进行干预，以避免汇率剧烈波动的汇率制度是()
A、固定汇率制D
暂无解析
题目：InvitationLetter邀请与约见函
Asisknowntousall,theage_____childrencangotoschoolisseven.
Humanbeingsaresuperiortoanimals_____theycanuselanguageasatooltocommunicate.
Theday____(在那天我第一次遇见他)wasthefirstofMayontheGreatWall.
Talkingtoforeignersisfunifyou____therighttimeandplace.
