885大全-secC-24

SEC C 24. The endurance and consistency of baseball star Lou Gehrig, known as “The Iron Horse,” are legendary.
(A) The endurance and consistency of baseball star Lou Gehrig, known as “The Iron Horse,” are legendary.
(B) The endurance and consistency of Lou Gehrig, a baseball star know as “The Iron Horse,” is legendary.
(C) Known as “The Iron Horse,” the endurance and consistency of Lou Gehrig, the baseball star, is legendary.
(D) The reason baseball star Lou Gehrig is known as “The Iron Horse” is because of his legendary endurance and consistency.
(E) Known as “The Iron Horse,” baseball star Lou Gehrig’s endurance and consistency are legendary.

key A.B为何错呢？the endurance and consistency做主语难道谓语动词不用单数？（endurance and consistency显然是性质相同的一个事物）。

去这看看吧。。

http://forum.chasedream.com/dispbbs.asp?boardID=23&ID=21028