[計量] 數列上一個UNIT一定是代表一個單位?

[sessions503 (矮子矮)]

150.    15382-!-item-!-187;#058&010719 (看B選項)
If n is an integer between 3 and 9, what is the value of n ?

(1)  On the number line, the distance from 3 to n is  of the distance from 3
to 9.

(2)  On the number line, n is 10 units to the right of -3


答案D

我只是想問一下,數列上的UNIT單位一個就是1,不會是0.1嗎?

麻煩解答了~~

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推 filley:unit也有最小整數的意思 所以應該以個位數來算
→ sessions503:感謝
推 chilis:題目少打,from 3 to n is2/3 of the distance from 3 to 9.