2. 外语
  3. Because noises modulate radio frequency, radio stations use a band of frequencies to prevent interference with other stations.

Because noises modulate radio frequency, radio stations use a band of frequencies to prevent interference with other stations.

admin2011-01-06  115
问题 Because noises modulate radio frequency, radio stations use a band of frequencies to prevent interference with other stations.
选项 A、govern
B、adapt
C、temper
D、renovate
答案A
解析 modulate指“调节”，与A项的govern(也可表示“调节”)含义接近。temper“使缓和”；adapt“使适应”；renovate“革新”。
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