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【单选题】阅读下面短文，回答下列问题。 2001年3月15日，北京大学教授于希贤来到抚仙湖，并组织考察组乘坐潜水器潜入湖底。他们利用声纳技术在水深15m处发现第一个目标。有一堵石墙，石料大小不一，每个石块上至少有一面到两面是平整的，带有人工加工过的痕迹。从声纳图上可以看到，该建筑区还具有中轴线和类似普通城市里的“一般居民居住区”。从建筑特点看，它们带有明显的当地黎族的古代建筑风格。没有多久，声纳图上又发现新...
A.
石块堆放整齐
B.
数米宽的南北向石板大道
C.
石料三面都有加工的痕迹，十分平整精细
D.
建筑群带有明显的当地黎族的古代建筑风格
【单选题】E Reading is not the only way to gain knowledge of the work in the past. There is another large. reservoir which may be called experience, and the college students will find, that every ...
A.
The college students have trouble separating good plants from wild grass.
B.
Craftsmen’s experience is usually unscientific.
C.
Craftsmen don’t like teaching the contemptuous (傲慢的) college students.
D.
Traditional practices are as important as experience for the college students.