Laser-dopple radar . Implied but not stated .

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问题 Laser-dopple radar ______.
Implied but not stated ______.

选项 A、Laser-dopple radar is more accurate than microwave radar
B、Microwave radar may not ensure absolute precision in measuring varying speeds
C、The light-beam radar can measure only slow speeds with accuracy
D、Microwave radar operates at a higher frequency than laser-dopple radar

答案B

解析根据第一段第二句及第二段第一句可推断B正确。A项已在文中明确提出过，C和D项与原文相反。

转载请注明原文地址:https://kaotiyun.com/show/IJAd777K

本试题收录于：公共英语二级笔试题库公共英语（PETS）分类

公共英语二级笔试

公共英语（PETS）

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Laser-dopple radar ______. Implied but not stated ______.

公共英语二级笔试

公共英语（PETS）

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Laser-dopple radar . Implied but not stated .