In paragraph three, the name and the dates between parentheses______.
A. are a question of personal style
B. represent vital new information
C. identify the author
D. refer to a different author
查看答案
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
It is implied in the last sentence that______.
A. many scientific areas stop making breakthroughs for lack of effective data collection
B. scientific research still makes progress without large-scale survey data
C. the progress of knowledge depends on achievements made by all areas of science together
D. scientific research has made little progress before the widespread adoption of the Internet
【C6】
A. confront
B. confine
C. conform
D. confuse
【C1】
A. however
B. therefore
C. but
D. hence
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