The word "backing " on the first line of the fourth paragraph has the closest meaning of______ A.returningB.chargingC.supportingD.replying请帮忙给出正确答案和分析,谢谢!
According to the passage, the state of tropical-forest isA.optimistic but worsening B.stable but dangerous C.harsh but promising D.serious but remediable 请帮忙给出正确答案和分析,谢谢!
There are_____I want to tell you A.one or two thingsB.either one thing or another thingC.neither one thing nor another thingD.not only one thing请帮忙给出正确答案和分析,谢谢!