[問題]PP-test(2) Q89 (structure)

[touer]

89.
Alpha rhythm, a brain wave frequency of moderate voltage, is characteristic of a person when is awake but relaxed.

the answer is (C)--->when he,or--->who

我想要問的是is characteristic of 在這邊該怎麼解釋?
以及characteristic在這邊是什麼詞性?

感謝各位

[whyc0907]

characteristic在這裡是名詞

[touer]

那再請問喔~為什麼不用加冠詞阿?

[enim]

在這裡應可當形容詞

from longman

adj [(0f)] typical; representing a person's or thing's usual character
典型的; 表現[人或物的]特徵的，特有的

ex)
It's characteristic of her that she never complained.
從不發牢騷是她的特性

ex)
This custom is characteristic of the Japanese.
這是日本特有的習俗