The author of this passage probably intended to explain ,______.
A．exactly how radar worksB．why the British used radio waves in their deviceC．how radar(word and device)came to beD．how radar helped the British win the Battle of Britain

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The author of this passage probably intended to explain ,______.A．exactly how radar worksB．why the British used radio waves in their deviceC．how radar(word and device)came to beD．how radar helped the British win the Battle of Britain

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The author of this passage probably intended to explain ,______.
A．exactly how radar worksB．why the British used radio waves in their deviceC．how radar(word and device)came to beD．how radar helped the British win the Battle of Britain