This passage tells us something about ______. The two-way radio is something like a telephone because ______.

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问题 This passage tells us something about ______.
The two-way radio is something like a telephone because ______.

选项 A、the radio has two telephones
B、you can talk to and listen to somebody by radio
C、the boys and girls can listen to somebody by radio
D、people can talk to a doctor hundreds of miles away by radio

答案B

解析 第二段第二句It works much like a telephone.A person can listen to someone else talk and give an answer.可得答案。
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