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【单选题】
He visited Shanghai _____ he went to China. [ ]A.
at the first time
B.
the first time
C.
for the first time
D.
at the first time when
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举一反三
【单选题】When the delegates met at Philadelphia in 1787,their task was（）
A.
to write a new constitution
B.
to see what they can do about the Articles of Confederation
C.
to design a new form of government
D.
to revise the Articles of Confederation