阿摩線上測驗
19. ________ is a pump or other machine for reducing volume and increasing pressure of gases in
order to condense the gases, drive pneumatically powered machinery, etc.
(A) Comminuter.
(B) Compressor.
(C) Agitator.
(D) Calorifier.
答案：登入後查看
統計： A(38), B(696), C(52), D(33), E(0) #1359047
統計： A(38), B(696), C(52), D(33), E(0) #1359047
