阿摩線上測驗
30. Desalination plants is also called as _______.
(A) power generators
(B) fresh water generators
(C) heat exchangers
(D) intercoolers
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統計： A(111), B(674), C(151), D(75), E(0) #2860353
統計： A(111), B(674), C(151), D(75), E(0) #2860353
