高等继续教育 / 高级英语II
正确率：100%
题型描述: 单选题
North America is incredibly rich, ＿＿＿＿＿＿＿ there are huge areas of poor land.
A.or
B.and
C.so
D.yet
North America is incredibly rich, ＿＿＿＿＿＿＿ there are huge areas of poor land.
A.or
B.and
C.so
D.yet
参考答案：
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