阿摩線上測驗
30. ______ usually provide the relatively large quantities of low-pressure air.
(A) Compressor
(B) Turbocharge
(C) Blower
(D) Boiler
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統計： A(182), B(138), C(731), D(84), E(0) #3077167
統計： A(182), B(138), C(731), D(84), E(0) #3077167
