乙炔既可使银氨溶液产生白色沉淀，又可使氯化亚铜氨溶液褪色。( )
参考答案：对
—_______ do you like music?—Because my favorite subject is music.
A．What
B．When
C．Why
D．Where
职工医保和大病医保的参保人未办转诊手续去市外就医，医疗费用报销比例是多少？
