30. Of all the art-related reference and research (library) in North America, (that of) the Metropolitan Museum of a Art in New York City is (among) the largest and (most complete).
4个选项中有一个错的,求解,并能解析一下,谢谢
谢谢1楼回答,不过答案不对,我一开始也选的第四个,后来看了答案不对,答案是 library -> libraries
非常不理解, 忘别的高手进来解析一下为啥啊 谢谢