主、副操舵装置除电动、控制和操纵系统正常外，（）也应正常。
A．远操装置
B．舵角信号指示
C．机旁操作
D．集控室操作
参考答案：B
If anything in the L/C is not agreeing with the contract, the exporter should ask the informing bank to amend the L/C immediately, in order to guarantee the collection and avoid dispute.
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