中国国家元首的称谓是（）
A.中 * * * *
B.国务院 * *
C.中央军委 * *
D.国家 * *
参考答案：D
中国古代官吏选拔经历了“世袭制——察举制——九品中正制——科举制”的过程。下列表述与“科举制”相关的是
A．“唐制，取士之科，多因隋制”
B．“上品无寒门，下品无士族”
C．“龙生龙，凤生凤”
D．“举秀才，不知书；举孝廉，父别居”
I regret not having taken your advice. Otherwise I _____ this mistake.
[ ]
A. didn't make
B. would not make
C. hadn't made
D. wouldn't have made
