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  3. Rabbit ear antennas are old fashioned but are still in use. [br] Emerson develop

Rabbit ear antennas are old fashioned but are still in use. [br] Emerson develop

游客2024-03-03  49
问题 Rabbit ear antennas are old fashioned but are still in use. [br] Emerson developed a technique that greatly improved the antenna’s ______ so that you can tune the antenna by simply moving the cable.
选项
答案 reception power
解析 参见文章第七段第三、四句：they developed a technique that．．．enhances．．． reception power and．．．注意题干中improve和原文enhance同义词之间的调换。
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