here _ you A.is a ticket of B.a ticket ie for C.is a ticket for D.has a ticker of 要详解

x��)��H-JU�W��/Up��,VHT(�L�N-Q�OSp҃�2S���Q��D\�2�BE ]/�5�X�����6IE�45_��Ά�>p��/.H̳Y��nC