assign the two-letter state abbreviations to a new variable named State?
a. State=scan(address2,2);
b. State=scan(address2,13,2);
c. State=substr(address2,2);
d. State=substr(address2,13,2);
为什么答案一定要是A,而不是D啊?

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楼主: 童童的草莓
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