单项选择题

They demand to set up an organization flexible enough to cope with any emergency（）

A. portable
B. valiant
C. trivial
D. mobile

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单项选择题

（）, the factories had not closed, and those who needed work most were given a chance to survive during the econmic disaster.

A. Unintentionally
B. Mercifully
C. Importunately
D. Tragically

单项选择题

American literary historians are perhaps（）to viewing their own national scene too narrowly, mistaking prominence for uniqueness.

A. prone
B. legible
C. incompatible
D. prior

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