选择题:Chicago is known as the Second City, but for drama

题目内容:
Chicago is known as the Second City, but for drama(戏剧) it’s first-rate. The city has over a hundred professional theatres, where you can see many of America’s new writers and actors
What does the passage mainly talk about?
A、Chicago’s transport, restaurants and weather.
B、Chicago’s theater, concerts and weather.
C、Chicago is famous for drama.
D、Dicago’s theater, concerts, restaurants and weather.

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填空题,20分] 设 是圆柱面x2+y2=4 介于 , z=3之间部分的外侧,则 .

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