纳税人、扣缴义务人可以采取（）方式办理申报、报送事项。
A、直接上门
B、邮寄
C、数据电文
D、其他方式
参考答案：A, B, C, D
As I’ll be away for at least a year, I’d appreciate _______ from you now and then telling me how everyone is getting along.
A．hearing
B．to hear
C．to be hearing
D．having heard
信号传输速率
