The guitar _____ John composed their first hit is now in a music museum.

A．by what

B．with which

C．on that

D．at which

肾母细胞瘤镜下瘤组织中可见下列哪些成分：（）

A.肉瘤性梭形细胞

B.横纹肌细胞

C.肾小球和肾小管样结构

D.软骨

E.神经纤维