複選題21.(AB) what (AC) colossal (AD) spoilage (AE) contribute (BC) on the other hand (BD) which (BE) patent (CD) shipment (CE) acknowledge (DE) in a word(AB) what (AC) colossal (AD) spoilage (AE) contribute (BC) on the other hand (BD) which (BE) patent (CD) shipment (CE) acknowledge (DE) in a word