对于银行间债券市场，（）是委托结算机构。
A.中央结算公司
B.国家外汇管理局
C.外汇交易中心
D.中国人民银行
参考答案：A
—He made few mistakes in his speech, ______________?
—____________, his perform is wonderful.
A．didn’t he; Yes, he did
B．did he; No, he didn’t
C．was he; No, he isn’t
D．wasn’t he; Yes, he is
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