According to the author, _________ made him lose face.
A. taking a deep breath
B. having different textbooks
C. walking out of the wrong class
D. not making any eye-contact
查看答案
The author was interested in his actual class because of _________.
A. the way the teacher lectured
B. the responsibility
C. the first class itself
D. the class that was his
The impression the author gained from his own class was_________.
A. embarrassing
B. boring
C. simple
D. fresh
受众规模非常大或非常小，执行调查的价格就可能（）。
A. 越贵
B. 越便宜
C. 越平均
如何撰写问卷开头的调查介绍，会让被调查者填写问卷的态度更积极，更诚恳。
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