单项选择题

A．The oceans and the gold rush.
B．Tourism and the entertainment industry.
C．The railroads and the discovery of oil.
D．Sea trade and the airplane industry.
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单项选择题
A．Protect the campus buildings.B．Converse the old trees.C．Protect the open spaces.D．Organize protests.
A．Protect the campus buildings.
B．Converse the old trees.
C．Protect the open spaces.
D．Organize protests.
单项选择题
A．He is going to the hospital.B．He is showing his hand.C．He is letting her go.D．He is offering help.
A．He is going to the hospital.
B．He is showing his hand.
C．He is letting her go.
D．He is offering help.
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