题库> 逻辑 CR> CR-a9107k

题目选项分析

It is theoretically possible that bacteria developed on Mars early in its history and that some were carried to Earth by a meteorite. However, strains of bacteria from different planets would probably have substantial differences in protein structure that would persist over time, and no two bacterial strains on Earth are different enough to have arisen on different planets. So, even if bacteria did arrive on Earth from Mars, they must have died out.

The argument is most vulnerable to which of the following criticisms?

【选项】It fails to consider whether there were means other than meteorites by which Martian bacteria could have been carried to Earth.

选项是否正确?

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题目基本信息

  • 所属科目:逻辑CR
  • 题目来源1:GWD-51
  • 题目来源2:PREP08 Test 2-97
难度: 难