填空题

The Natchez Trace was not a road in a real sense because it was just a path used by walking or riding.

【参考答案】

Y

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学生作弊的现象比较普遍2．产生这种现象的原因3．怎样杜绝作弊 How to Deal with Cheating

填空题

By using the national road system, one can drive to all states of America without stopping.