内蒙古自治区成立于哪一年？
参考答案：
1947年。
For any integer n greater than 1, denotes the product of all the integers from 1 to n, inclusive. How many prime nunbers are there between and , inclusive ？（）
对细菌性痢疾来说哪项是对的（）
A.发病多在夏秋季
B.近年来在临床上很少见
C.粪便中有大量单核细胞
D.通常结肠与小肠均有炎症
E.发病前2周有饮食不洁史或与菌痢接麓史
denotes the product of all the integers from 1 to n, inclusive. How many prime nunbers are there between 
and 
, inclusive ？（）