He always has a lot of _______ ideas in his mind , and sometimes we do not even know what he is thinding about.
A. novel
B. novel
C. acceptable
D. additional
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Please be serious. I am not _______. You should consider it carefully
A. sorting
B. joking
C. counting
D. comparing
中国古代允许独子兼祧的朝代是()
A. 唐朝
B. 宋朝
C. 明朝
D. 清朝
When making modern cameras , people began to_______ plastics for metal.
A. surround
B. substance
C. stretch
D. substitute
为加强皇权,明太祖朱元璋废除了一种在中国实行了一千多年的政治制度,使中央行政体制发生了重大变化。该制度是()
A. 宰相制度
B. 分封制度
C. 宗法制度
D. 世卿世禄制度