Scientificexperiments
來源:國語幫 2.49W
問題詳情:
Scientific experiments __________ by students without the teachers’ instructions can be dangerous.
A. carry out B. carrying out C. carried out D. carrying
【回答】
C知識點:分詞
題型:選擇題
問題詳情:
Scientific experiments __________ by students without the teachers’ instructions can be dangerous.
A. carry out B. carrying out C. carried out D. carrying
【回答】
C知識點:分詞
題型:選擇題