【简答题】网上直接调查法可以分为____、____和网络观察法,其中最常用的方法是____。
【单选题】Why does the professor say this:
A.
He does not expect the student to answer the question.
B.
He does not know the answer to the question.
C.
He does not want to continue the debate in class.
D.
He does not want to influence the woman's thinking.
【单选题】Listen again to part of the conversation. Then answer the question. Why does the man say this:
A.
To inform. the woman that no rooms are available
B.
To encourage the woman to reserve a room now
C.
To recommend the rooms on the third floor
D.
To let the woman know which rooms are better
【简答题】网上直接调查法可以分为() 、()和网络观察法,其中最常用的方法是()。