题目内容
Infrared is a kind of automatic connection.
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The two drawbacks of infrared communications are actually advantageous in some regards .
Interference cannot work in infrared communications and the message is sure to reach your intended recipient.
Transmission of data via low-power radio waves doesn’t interfere with one another.
Bluetooth is a kind of wireless connection，so it is unavoidable to interfere with one another device.
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