单选题Puncture leaks in the lower tubes or bottom of an inflatable liferaft should FIRST be stopped by using（）.Asealing clampsBrepair tapeCa tube patchDsail twine and vulcanizing kit
单选题
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
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