If 10的50次方 – 74 is written as an integer in base 10 notation, what is the sum of the digits in
that integer?
A. 424
B. 433
C. 440
D. 449
E. 467
ANS: C
這題也請大家幫幫忙喔....
版主: shpassion, Traver0818
正在浏览此版面的用户:没有注册用户 和 15 位游客