13. All nations have shown their resolve to expect to reduce the amount of GHGs to 17% _______ 40% of the levels of previous years.
(A) in
(B) to
(C) of
(D) at

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統計： A(4), B(30), C(15), D(6), E(0) #1219763

詳解 (共 1 筆)

Gina Lu

B1 · 2017/04/15

#2135475

所有國家都表示決心預期將溫室氣體減少到1...

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