阿摩線上測驗
34 CO2 ________ can be used on electrical fires. Using a wrong type for a different kind of fire can be life-threatening.
(A) accomplishers
(B) extinction
(C) distinguishing
(D) extinguishers
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統計： A(4), B(6), C(10), D(32), E(0) #3255930
統計： A(4), B(6), C(10), D(32), E(0) #3255930
