银行汇票签发成功的业务状态为()。
A.已记账
B.已清算
C.已冲正
D.已撤销
参考答案:B
This is a piano. Danny is playing __________ piano.[ ]
A. the
B. a
C. his
D. /
自轮运转特种设备技术准入条件如何规定?