天山-4-5 criticisms = unconvinced?

lachance

evalute 得有好的和坏的观点,这里没有.而且后面的名词the usefulness of fossil evidence in determining the evolutionary history of birds也有问题.是说恐龙进化为鸟. 不是the evolutionary history of birds

lxw19

T-4-Q7

Which of the following is mentioned in the passage as an argument made by scientists who are unconvinced that birds evolved from theropod dinosaurs?

A.    There are no known theropod dinosaur fossils dating from a period after the time of Archaeopteryx.
B.    There are no known theropod dinosaur fossils that indicate the structure of those dinosaurs’ lungs.
C.    Theropod dinosaurs appear in the fossil record about 150 million years ago.
D.    Theropod dinosaurs did not have fused clavicles.
E.    Theropod dinosaurs had certain bones that look just like those of Archaeopteryx.

还是不太明白~~D怎么会是论据呢？

miller811

Skeptics also argue that the fused clavicles (the “wishbone”) ofbirds differ from the unfused clavicles of theropodsQ7定位这句


这题Q5好难阿 还是以前的NN厉害阿

gedn01

是啊，问题问从scientists(who are unconvinced that birds evolved from theropod dinosaurs)那里说出来的看法就只有differ from

buffonjuventus

仔细读了两遍，author确实没有明确的支持，只是表示了对理论批评的回应……

buffonjuventus

求助--In any case, failure to find fossils of a predicted kind does not rule out their existence in an undiscovered deposit.請問這句該怎麼解讀??我轉不過來.謝先了!

-- by 会员 a-ga (2005/7/4 22:16:00)

小弟弟我觉得，简单理解就是：在任何情况下，不能因为找不到未经发掘的化石就全盘否定猜测物种的存在……

buffonjuventus

仔细读了两遍，author确实没有明确的支持theory或者支持否定，只是表示了对理论批评的回应……前辈的理解……赞啊

-- by 会员 buffonjuventus (2010/10/17 11:30:09)