Known to be还是as 求大牛解答，谢谢！！！

zhErick

Until a few centuries ago, any large bones discovered in the fields or caves of Europe, now known to be large prehistoric animals, were usually assumed to be the remains of giants and were often displayed as curiosities in castles, palaces, town halls, churches, and monasteries.

A.now known to be large prehistoric animals, were usually assumed to be

B.presently known as from large prehistoric animals, were usually assumed as

C.bones now known to be those of large prehistoric animals, were usually assumed to be

D.bones known at present as of large prehistoric animals, were usually assumed as those of

E.currently known as those of large prehistoric animals, were usually assumed to be those of
一直纠结着。。。从未停止过。。。 还有后面类似的assume to be 还是 assume as

sdcar2010

know to be

twchasedream

应该是B

CD的bones重复了，排除
A若对，句子则变成，任何“任何大骨头……都是史前动物”不符合题意
e若对，则答案的后半部分变成“（这些骨头）被假定为巨人的遗骸的骨头”，感觉怪怪的

sdcar2010

CCCCCCCCCCCCCCCCc

"known as from" is wrong.