四六级考试

【单选题】

Which opinion did the discovery proveA．Modem birds are the closest living relatives of the two-legged dinosaurs.
B．Dinosaurs have medullary bone.
C．Medullary bone is only known in ovulating birds.
D．Medullary bone is a source of calcium for birds to make shells for their eggs.

网考网参考答案：A
网考网解析：
本题考查对新闻内容的理解。从原文"They point out that the discovery confirms the view that modern birds are the closest living relatives of the two-legged dinosaurs.”可知此次发现证实了现代的鸟类是与两条腿的恐龙有最近亲缘关系的动物。因此选项A为正确答案。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>