普通记录涂改处加盖的人名章无法辨认时，该记录应视为（）。
A.伪编
B.误编
C.无效
D.有效
参考答案：C
中医的肾子相当于（）
A.阴茎
B.睾丸
C.附睾
D.精索
E.睾丸及附睾
Which of the following types of unemployment is most likely caused by long-run changes that eliminate some jobs while generating others for which unemployed workers are not qualified（）
A. Frictional.
B. Structural.
C. Cyclical.
