問題詳情
【題組】4.( ) Having indoor plants can help make the air in our homes cleaner to breath. The plants take carbon dioxide out of the air and ___ oxygen into it.
(A) reflect
(B) reduce
(C) resolve
(D) release (RM 8-1)
參考答案
答案：D
難度：困難0.375
統計：A(5),B(5),C(0),D(6),E(0)