问题
选择题
145. The nation was reunited and the slaves were ______ when the North won the Civil War in American history.
A．escaped
B．set free
C．set freedom
D．set out
答案
答案：B
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145. The nation was reunited and the slaves were ______ when the North won the Civil War in American history.
A．escaped
B．set free
C．set freedom
D．set out
答案：B