阿摩線上測驗
22. ________ is a device for separating different materials by means of an outward force on a
body rotating about an axis within the unit.
(A) purifier
(B) generator
(C) strainetr
(D) Homogenizer
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統計： A(431), B(51), C(72), D(126), E(0) #1626197
統計： A(431), B(51), C(72), D(126), E(0) #1626197
