DS-1-40

YuCongyun

40.       3636-!-item-!-187;#058&003488

Beth's bank charges a service fee on a regular checking account for each month in which the balance on the account falls below $100 at any time during the month.  Did the bank charge a service fee on Beth's regular checking account last month?

 

(1)  During last month, a total of $1,000 was withdrawn from Beth's regular checking account.

 

(2)  At the beginning of last month, Beth's regular checking account balance was $500.

The answer is E. Why not B?

ilhht

第2个条件只有给出at the beginning 并不能知道之后的情况是怎样的，也可能月中会低于100块，因为是any time during the month。所以不充分，楼主加油！！