动物骨盆粉碎性骨折，常使用的固定方法是______。

A．髓内针固定
B．接骨板固定
C．贯穿术固定
D．夹板绷带固定
E．石膏固定

One or two days ____quite enough to complete the work. ___ you or he going to work with me?

A．is; Is

B．is; Are

C．are; Is

D．are; Are