脑多头蚴的成虫寄生于（）
A.牛、羊脑、脊髓
B.人脑、脊髓
C.犬、狼、狐小肠
D.犬、狼、狐脑、脊髓
E.犬、狼、狐肝脏
参考答案：C
They are talking excitedly about the writers and their books ________ interest them.
A．who
B．whom
C．that
D．Which
