1 AB that、it无指代内容;C overcome by pollution 和fell 无前后关系,时态错;E and不平行,选D
2 选A,that引导定语从句时指代前面紧接着的那个词,此此句里affect climate 的是interactions而非atmosphere,故重复interaction,同位语从句
1 AB that、it无指代内容;C overcome by pollution 和fell 无前后关系,时态错;E and不平行,选D
2 选A,that引导定语从句时指代前面紧接着的那个词,此此句里affect climate 的是interactions而非atmosphere,故重复interaction,同位语从句