A certain bank charges a maintenance fee on a standard checking account each month that the balance falls below $1000 at any time durign the month. Did the bank charge a maintenance fee on Sue's standard checking account last month?
A certain bank charges a maintenance fee on a standard checking account each month that the balance falls below $1000 at any time durign the month. Did the bank charge a maintenance fee on Sue's standard checking account last month?
(1) At the beginning of last month, Sue's account balance was $1500 (2) During last month, a total $2000 withdrawn from Sue's checking account
Ans : E
我不明白的是A為甚麼Sufficient? At the beginning of last month不就符合at any time durign the month, 然後 $<1000