题目

完形填空In 1994, the Brazilian photographer Salgado went back to his homeland in Minas Gerais, Brazil. He was1to see the land run by his family. The thick forest there was once a paradise (乐园) for him and his friends, bringing them 2 memories. To his horror, hesaw a totally different 3. Only 0. 5% of the land was coveredwith trees. The land was as sick as a serious patient—everything was 4 due to deforestation (砍伐森林), Salgado said 5 during a meeting on climate change in Paris. Salgado 6 that he should do somethingabout it. Then he 7 the bold idea of replanting trees on the la如果代数式-2a+3b+8的值为18，那么代数式-6a+9b+2的值等于A.32B.-32C.28D.-28