LSAT-19-2-18

番茄炒蛋

恩，呵呵，只要是有可能就好了啦，又不是绝对的
又不一定只有这种解释的

snow_mountain

我当时也是这样想来着，但后来有想，有可能出生地就在那里，往热带迁，那不就没的解释了吗？我大概是想的太多了。

番茄炒蛋

关键词是 migrate
恐龙也可能是冷血动物来的，他们的出生地可能不是在那啊，
只是因为他们要找食物，所以到处乱串
呵呵，结果就在那个最冷的地方冻死了，好冷啊，呼呼，我这还有26度呢

snow_mountain

B is not relevant. but why D?

yhcui

楼主GG,怎么把B排除掉的呢？

snow_mountain

18. Because dinosaurs were reptiles, scientists
once assumed that, like all reptiles alive today,
dinosaurs were cold-blooded. The recent discovery
of dinosaur fossils in the northern arctic
however has led a number of researchers to
conclude that at least some dinosaurs might have
been warm-blooded. These researchers point out
that only warm-blooded animals could have
withstood the frigid temperatures that are
characteristic of arctic winters, whereas coldblooded
animals would have frozen to death in the
extreme cold.
Which one of the following if true weakens the
researchers' argument?
(A) Today's reptiles are generally confined to
regions of temperate or even tropical climates
(B) The fossils show the arctic dinosaurs to have
been substantially smaller than other known
species of dinosaurs.
(C) The arctic dinosaur fossils were found
alongside fossils of plants known for their
ability to withstand extremely cold temperatures.
(D) The number of fossils found together
indicates herds of dinosaurs so large that they
would need to migrate to find a continual food
supply
(E) Experts on prehistoric climatic conditions
believe that winter temperatures in the
prehistoric northern arctic were not
significantly different from what they are today.

答案D。 用了排除法，但其实不是很明白D为什么能weaken