单选题Each hose used for transferring vapors must（）.Ahave a design burst pressure of at least 25 psigBbe capable of withstanding at least 2.0 psi vacuum without collapsing or constrictingCbe electrically continuous with a maximum resistance of ten thousand ohmsDAll of the above
单选题
Each hose used for transferring vapors must（）.
A
have a design burst pressure of at least 25 psig
B
be capable of withstanding at least 2.0 psi vacuum without collapsing or constricting
C
be electrically continuous with a maximum resistance of ten thousand ohms
D
All of the above
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