How long has she in Tianjin?[ ]
A. come
B. came
C. been
D. coming
答案:C
--- It's time _________.
--- I'm coming,Mum.
A.for breakfast
B.have breakfast
C.for you have breakfast
D.for have breakfast
交替遮盖时被遮盖眼上飘合并外旋,去遮盖后又回到注视位并内旋()
A.垂直分离斜视
B.上斜肌肌鞘综合征
C.眼球后退综合征
D.甲状腺相关眼病
E.固定性斜视