我国戏剧角色行当的真正形成是（）。
A.汉代
B.唐代
C.宋代
D.明代
参考答案：A
__________ Nancy at home last weekend?
No, she __________. She was in the library with her friends.[ ]
A. Is, isn't
B. Was, wasn't
C. Did, didn't
D. Was, isn't
肾穿刺的绝对禁忌证是（）
A.孤立肾
B.肾脏移植
C.不明原因的急性肾衰竭
D.肾小球肾病
E.糖尿病肾病
