巩膜最薄弱之处是（）
A.直肌附着点附近
B.赤道部
C.涡静脉处
D.近角膜缘处
E.视神经旁
参考答案：A
________ by the heavy snowfalls, Chenzhou, a city in South China, was cut off from the outside,
________ water and electricity shortage.[ ]
A. Having struck; facing
B. Having struck; faced
C. Struck; facing
D. Struck; faced
遗传性球形细胞增多症可见特征性（）
A.有核红细胞
B.巨红细胞
C.小红细胞
D.椭圆形红细胞
E.球形红细胞
