单选题
He had a clear ______of what was wrong with the machine and fixed it in a short time.
A、
defect
B、
dissertation
C、
perception
D、
persuasion
【正确答案】
C
【答案解析】
[解析] clear perception清楚的认识；defect缺陷；dissertation论文；persuasion说服。故选 C项。
提交答案
关闭