What is NOT a precaution to be taken when topping off? （）<br>A:Reduce the loading rate<br>B:Notify the engine room of the procedure<br>C:Maintain communications with the dock man<br>D:Give the operation your undivided attention

What is NOT a precaution to be taken when topping off? （）
A:Reduce the loading rate
B:Notify the engine room of the procedure
C:Maintain communications with the dock man
D:Give the operation your undivided attention

出自：海船船员证

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