当眼球向外转时，外直肌接受神经冲动兴奋，而直接对抗肌内直肌同时受到抑制，这遵循（）。

A.Sherrington定律

B.Hering定律

C.Donders定律

D.Listing定律

E.以上均不是

Not everybody knows there ____ more than one kind of English in the world. [ ]

A. is

B. are

C. has

D. have