GMAT 考满分题库

Scientists have found signs that moving water changed the chemical makeup of the surface of Mars in recent eras, therefore concluding that its crust is harboring up to three times as much water than was previously thought.
  • Aeras, therefore concluding that its crust is harboring up to three times as much water than was 分析该选项
  • Beras, therefore concluding that the planet's crust harbors up to three times as much water or more as was 分析该选项
  • Ceras and have therefore concluded that the planet's crust harbors up to three times as much water as 分析该选项
  • Deras and they have concluded, therefore, that its crust harbors up to three times as much water, or more, than 分析该选项
  • Eeras and concluded, therefore, that the planet's crust is harboring up to three times more water as was 分析该选项
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正确答案: C

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