狭义的信道编码既是指：信道的检、纠错编码。
参考答案：对
公路超限检测站应当根据检测执法工作流程，明确哪些岗位的工作职责？
If a seller finds any discrepancies in the letter of credit against the sales contract, whom should he write to asking for an amendment（ ）
A．the issuing bank
B．the advising bank
C．the applicant
D．the negotiating bank
