单选题What is the accepted standard for wire rope falls used in connection with the lifeboat gear?（）ASix by seven galvanized wire ropeBSix by twenty-four improved plow steel wire ropeCSix by thirty-seven preformed fiber-core wire ropeDSix by nineteen regular-lay filler wire rope
单选题
What is the accepted standard for wire rope falls used in connection with the lifeboat gear?（）
A
Six by seven galvanized wire rope
B
Six by twenty-four improved plow steel wire rope
C
Six by thirty-seven preformed fiber-core wire rope
D
Six by nineteen regular-lay filler wire rope
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