单项选择题


Questions 19 to 21 are based on the conversation you have just heard.

A．The Arctic land.
B．Iceberg.
C．Active volcano.
D．Ice age.
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单项选择题
A．Different political power in the House of Representative.B．The fact that the North had more political power in the Senate;C．Slavery.D．Tariffs.
A．Different political power in the House of Representative.
B．The fact that the North had more political power in the Senate;
C．Slavery.
D．Tariffs.
填空题
G
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