题目内容：
The Great Wall was so wide that armies could march ____ it.( )(本题2.0分)A、 at top of
B、 on top of
C、 at the top of
D、 on the top of
参考答案：
选择题：The Great Wall was so wide that armies could march
- 题目分类：河南质量工程职业学院大学英语1
- 题目类型：选择题
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A、 at top of
B、 on top of
C、 at the top of
D、 on the top of