—Look ! The banana is too big. Why don't you _____ first?

—That sounds a good idea![ ]

A. cut up it

B. cut it up

C. cut up them

D. cut them up

猪主要携带的钩体菌群是（）

A.波摩那型

B.秋季热型

C.黄疸出血型

D.七日热型

E.犬型