The author firmly believes that Web-based surveys will______.
A.enhance the economic status of a nation
B.promote the progress of social sciences
C.change social, economic and political conditions of the public
D.hold the interviewees'interest longer than traditional surveys

A.A.enhance
B.promote
C.change
D.hold

【参考答案】

B
解析：文章指出，通过Web-based, surveys，许多类型的社会科学将更迅速地前进。第二段最后一句B......

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