試題選項拼字練習 (99年指考第4題)
99年指考第4題
請按滑鼠或字鍵選出正確或最適當的答案:
The baby polar bear is being _____ studied by the scientists. Every move he makes is carefully observed and documented.
參考詞彙 附 錄第一級第二級第三級第四級第五級第六級