問題詳情

9 As a collector, Mr. Strachwitz has built _______ is believed to be the largest private collection ofMexican-American and Mexican music.
(A)that
(B)what
(C)who
(D)which

參考答案

答案：B
難度：非常困難0
統計：A(0),B(0),C(3),D(1),E(0)