Ofparticularinteresttovisiters____thelargernumberofbookstoresthatsellbooksindifferentlanguages.[A]is[B]are我想,后面thenumberof是"……的数量"的意思,所以选is,但是答案上是are

　　Ofparticularinteresttovisiters____thelargernumberofbookstoresthatsellbooksindifferentlanguages.

　　[A]is[B]are

　　我想,后面thenumberof是"……的数量"的意思,所以选is,但是答案上是are