下列结构类型中，遇碱液呈红色或紫红色的是（）
A.羟基苯醌
B.羟基萘醌
C.羟基蒽酚
D.羟基蒽酮
E.羟基蒽醌
参考答案：E
It was in the stone house _____ was built as a school by local villagers _____ the boy finished
his primary school. [ ]
A. which; that
B. that; where
C. which; where
D. that; which
国家水准网的布设方案原则是（）。
A.从大到小，从整体到局部
B.从小到大，从整体到局部
C.从大到小，从局部到整体
D.从小到大，从局部到整体
