People often keep ___ animals as pets for fun. However, when pet owners release these animals back into the wild, indigenous animals may be unable to compete.
Anon-native正確答案
Bnon-stop
Cnon-stick
Dnon-union
答案與詳解
A
正確答案
本題測驗 non- 字首複合字。由後文 indigenous（原生的）對比，可知應選 non-native（非原生的/外來種）。
載入中…
