Puncture leaks in the lower tubes or bottom of an inflatable liferaft should FIRST be stopped by using（）.<br>A:sealing clamps<br>B:repair tape<br>C:a tube patch<br>D:sail twine and vulcanizing kit

Puncture leaks in the lower tubes or bottom of an inflatable liferaft should FIRST be stopped by using（）.
A:sealing clamps
B:repair tape
C:a tube patch
D:sail twine and vulcanizing kit

出自：海船船员证

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