It's a nice day, _ ? [ ]
A. is it
B. isn't it
C. are they
D. aren't they
答案：B
简述中国革命建立统一战线的必要性。
内囊出血可致（）
A．患侧视野全盲
B．双侧视野颞侧偏盲
C．患侧视野鼻侧偏盲
D．双侧视野对侧同向性偏盲
E．患侧视野颞侧偏盲
