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【单选题】
早期城市数量少、规模小的根本原因是( )A.
当时生产力水平低,农业为城市提供的农产品较少
B.
当时人口少
C.
城市发展受用地规模的限制
D.
为了城市便于防护,规模不宜过大
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举一反三
【单选题】Which of the following can be learned from Para.2?
A.
People over 50 spend less money on luxury items.
B.
Young people have become more economic because they earn less money.
C.
The increase of older generations has helped growth of American economy.
D.
Middle-aged or elderly models are more welcome in American commercials today.
【单选题】The expression 'more lenient'(Line 2, Para. 4)is closest in meaning to
A.
less controversial.
B.
more effective.
C.
more lasting.
D.
less severe.
【单选题】The word 'footnote' (Para. 1) means that the influenza in 1957 _____.
A.
was less important in American medical history
B.
imposed little influence on American population
C.
was less serious in terms of death toll
D.
got less attention of American medical experts
【简答题】An adjective meaning not changing. (Para 8)
【简答题】Para 8 ______
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