In dense fog a vessel without operational radar may not be justified（）at all but should anchor if it is safe and practicable for her to do so.<br>A:to be underway<br>B:on under way condition<br>C:to stop engine<br>D:in being under way

In dense fog a vessel without operational radar may not be justified（）at all but should anchor if it is safe and practicable for her to do so.
A:to be underway
B:on under way condition
C:to stop engine
D:in being under way

出自：海船船员证

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