李白在《梁甫吟》中写道：“君不见，朝歌屠叟辞棘津，八十西来钓渭滨。”借用了哪个历史人

If _________, he promised that he would try his best to improve people's living conditions. [ ]

A. being elected

B. to be elected

C. having elected

D. elected

判断。（对的打“√”，错的打“×”） 

1．5月份有31天，合4个星期零4天。[ ]

2．在有余数的除法中，余数可能比商小。[ ]

3．一个数除以7，余数可能是3，5，8。[ ]

4．71比8的8倍多3。[ ]

5．42被8，9除，都除不尽，余数都是3。[     ]

-I prefer sports shows       soap operas. What about you?

-Me ,too.[ ]

A. to            

B. than          

C. at

制约我国西北地区农业发展的主要因素是 [ ]

A、地形

B、水分

C、热量

D、生产技术

贫气