137. A bar over a sequence of digits in a decimal indicates that the sequence repeats indefinitely. What is the value of (104-102)(0.0012)?
A. 0
B. 0.12
C. 1.2
D. 10
E. 12
答案是E,我也选对了.可我不知道问题What is the value...前的那段话对解题有什么帮助?而且OG答案中的推导10,000(0.0012)-100(0.0012)=12.12-0.12也不明白. |