44. To empty jars, we should put them right side up on the rack in a boiling-water canner.
(A) coat
(B) contaminate
(C) disinfect
(D) muddy。
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統計: A(5), B(48), C(69), D(9), E(0) #2236415
統計: A(5), B(48), C(69), D(9), E(0) #2236415