正确答案: A

Channel 70

题目：Which channel is designated for VHF Digital Selective Calling?

解析：A

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举一反三的答案和解析：

[单选题]If fuel injection to a four-stroke/cycle diesel engine begins earlier than designed, ignition may be delayed because the

cylinder compression pressure may not be high enough

[单选题]介绍我自己

introduce myself

[单选题]下列人员属于操作级的是_______。

二副

[单选题]根据STCW78／95规则，下列说法正确的是＿。

500总吨以下船舶的高级船员的责任级别为操作级

[单选题]脑神经有______。

12对