记住，安全第一。（）<br>A:Remember: safety first.<br>B:Mind. Safe the first.<br>C:Think of it. Safety is one.<br>D:Think of it. Safety first.

记住，安全第一。（）
A:Remember: safety first.
B:Mind. Safe the first.
C:Think of it. Safety is one.
D:Think of it. Safety first.

出自：船舶水手证

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