选择题:A stamp is worth a million and a half times its or

题目内容:
A stamp is worth a million and a half times its original value because ________.



A)
it was misprinted a hundred years ago
B)
of its rareness and age
C)
few collectors have it
D)
it was made in British colonies
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现代医学临床专业学科的建立方法不包括( )A.按病种建立的学科B.按诊断手段建立的学科C.按治疗手段

现代医学临床专业学科的建立方法不包括( )A.按病种建立的学科B.按诊断手段建立的学科C.按治疗手段建立的学科D.按产生时代建立的学科E.按治疗对象建立的学科

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