面神经阻滞的并发症是()。
A.听力障碍
B.眼球震颤或眩晕
C.外耳道出血
D.全脊髓麻醉
E.一过性面瘫
参考答案:A, B, C, E
He disappeared last month, _____ we have heard nothing of him. [ ]
A. when
B. after which
C. from which
D. since when
到2003年为止,全世界有20.78亿人信仰基督教,主要集中在下列哪些地区:()
A、北美和西欧
B、北美和东欧
C、北非和西欧
D、北非和东欧