《消费者权益保护法》规定的公平交易的条件包括（）。
A.保证质量
B.保证美观
C.价格合理
D.计量准确
参考答案：A, C, D
用适当的关系代词或关系副词完成下列句子。
1. I hope to visit a place_____ the weather is cool.
2. The village in_____ my grandparents used to live lies at the foot of a mountain.
3. I know a place_____we can have a wonderful time.
4. The girl_____ is standing there is my sister.
5. Do you like the shirt_____ is very expensive?
与常规X线平片相比，四肢骨CT检查主要优势是易于发现（）
A.长骨骨折
B.退行性骨增生
C.废用性骨质疏松
D.骨皮质的大片破坏
E.骨破坏区内部结构
very expensive?