根据技术分析理论，不能独立存在的切线是( )。
A．支撑线 B．百分比线 C．轨道线 D．速度线
参考答案：C
--- Excuse me. I want to buy some stamps. Where can I find a post office?
---I know ____ not far from here. You can easily find ____.
A. that; it B. it; one C. one; it
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