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题库 / GMATLA-CR-96
Whales originated in the freshwater lakes and rivers of ancient Asia about sixty million years ago. Not until about ten million years later did species of whales develop specialized kidneys enabling them to drink salt water. Although fossil evidence shows that some early whale species that lacked such kidneys sometimes swam in the Earth's saltwater oceans, these species must have had to return frequently to freshwater rivers to drink.
Which of the following is most strongly supported by the information given?
Fossils of whale species dating from between sixty million and fifty million years ago will not be found on continents that were at the time separated from ancient Asia by wide expanses of ocean.
Among whale fossils that date from later than about fifty million years ago, none are fossils of whale species that drank only fresh water.
Fossils of whale species that drank fresh water will not be found in close proximity to fossils of whale species that drank salt water.
The earliest whales that drank salt water differed from fresh-water-drinking whales only in their possession of specialized kidneys.
Between sixty million and fifty million years ago, the freshwater lakes and rivers in which whales originated were gradually invaded by salt water.
A: 根据题干，直到50m年前，鲸鱼才可以在海水中生活，否则只能在海水中停留一阵子就回到淡水中。如果两个大陆被海洋远远隔开，那么鲸鱼不能从一个大陆去到另一个大陆，因此不可能在离Ancient Asia远的大陆上发现鲸鱼。加强，所以正确。
originated in freshwater ASIA 60M yrs—10M yrs developed special kidney for saltwater
without the developed kidneys swam in saltwater but have to return to freshwater to drink
大哥们读问题啊，这是演绎推理。哪里来的加强，果因推理啊
D错在哪里啊？
这是演绎推理啊
b说是w，但是他说没有w只和fresh，不是也说明了w两种都喝吗？不就是来回的意思吗？
选成 C 了 果因推理 C是 改变果了 是错误的 只能 CQ1 其他原因导致结果
C 其实还是有可能的， 因为化石嘛，不同时期的化石还是有可能从同一个地方被挖掘出来的。