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GMAT 考满分题库

GWD - 语法SC - 250
According to some botanists, invasive plants are the second most serious threat, after habitat loss, to native species of plants and animals and to the maintenance of biologically diverse ecosystems.
  • Athreat, after habitat loss, to native species of plants and animals and to the maintenance of biologically diverse ecosystems 分析该选项
  • Bthreat, after habitat loss, to native species of plants and animals and for maintaining biologically diverse ecosystems 分析该选项
  • Cthreat, after losing their habitat, to native species of plants and animals and also to maintenance of biologically diverse ecosystems 分析该选项
  • Dthreat to native species of plants and animals and for maintaining biologically diverse ecosystems, after habitat loss 分析该选项
  • Ethreat to native species of plants and animals as well as to maintaining biologically diverse ecosystems, after losing their habitat 分析该选项
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正确答案: A

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