21. Among all the greenhouse gases, carbon dioxide (CO2) is considered most ________ for global climate change because of its huge emission amount.
(A)responsibility
(B) responsible
(C) responsibly
(D) responsive

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統計： A(154), B(525), C(130), D(77), E(0) #1458415

詳解 (共 3 筆)

#2940633

 Among all the greenhouse gases, carbon dioxide (CO2) is considered most ________ for global climate change because of its huge emission(排放) amount. 
(A)responsibility + for - 責任。
(B) responsible + for - 是.....的原由。
(C) responsibly - 負責任地。
(D) responsive - 回答的；回應的；響應的

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私人筆記 (共 1 筆)

私人筆記#600078
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(考片語) Among all the...
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