A Harvard anthropologist has proposed that using fire to cookfood could be dated back to almost two million years and thatit could explain hominid features like having a large brain andsmall teeth.
A.using fire to cook food could be dated back to almost two million years and that it could explain hominid featureslike having
B.the use of fire to cook food could date back almost two million years and could explain such hominid features as
C.cooking food with fire could date back to almost two million years, explaining hominid features like
D.fire used to cook food could date back almost two million years ,explaining hominid features such as having.
E.fire used for cooking food could be dated back to almost two million years and explain hominid features like.
答案是B，我选对了，因为根据后半句就可以判断，我只是想问这几个选项的前半句都对吗？date back to 什么的。。。 | 
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发表于 2011-8-16 16:13:35
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