2. 外语
  3. A master is an electronic apparatus that ______radio and light waves.

A master is an electronic apparatus that ______radio and light waves.

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问题 A master is an electronic apparatus that ______radio and light waves.
选项 A、generated and was amplified
B、generating and amplifying
C、generates and amplifies
D、to generate and amplify
答案C
解析
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托福（TOEFL）

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