Which antenna generally has the narrowest first Fresnel zone in both the horizontal and verticalplanes？（）
- A、omnidirectional
- B、patch
- C、Yagi
- D、sector
- E、parabolic dish
正确答案:E
答案解析:有
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Which antenna generally has the narrowest first Fresnel zone in both the horizontal and verticalplanes？（）
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