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【单选题】
It was not until I came here _______ I realized this place was famous for not only its beauty but its weather.A.
who
B.
that
C.
where
D.
before
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举一反三
【单选题】Which of the following does NOT add to U.S. GDP?
A.
Air France buys a plane from Boeing, the U.S. aircraft manufacturer.
B.
General Motors builds a new auto factory in North Carolin
C.
The city of New York pays a salary to a policeman.
D.
The federal government sends a Social Security check to your grandmother.
【简答题】附子的药用部位