Which type of waves does radar use? A. sound B. heat C. radio D. light
Câu hỏi:
Which type of waves does radar use?
A. sound
B. heat
C. radio
D. light
Trả lời:
Lời giải:
6. Thông tin: With radar, however, the waves are radio waves instead of sound waves.
Đáp án: C
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