2. 外语
  3. An atomic clock is so______that it will probably lose no more than a second in 3,000 years.

An atomic clock is so______that it will probably lose no more than a second in 3,000 years.

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问题 An atomic clock is so______that it will probably lose no more than a second in 3,000 years.
选项 A、punctual
B、clear
C、accurate
D、explicit
答案C
解析 形容词辨析题。accurate意为“精确的，准确的”，强调与事实无出入，符合句意。punctual意为“守时的，准时的”；clear意为“清晰的；清楚的；明白的”；explicit意为“详述的；明确的”，均与句意不符，故排除。
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