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  3. Radar is used to extend the competence of man’s senses for observing his environ

Radar is used to extend the competence of man’s senses for observing his environ

游客2025-01-20  7
问题 Radar is used to extend the competence of man’s senses for observing his environment, especially the sense of vision.
选项 A、validity
B、liability
C、capability
D、intensity
答案 C
解析 本题考查词义辨析。A选项意为“效力；正确性”，B选项意为“责任；债务”，某些考生可能会误以为这个词和ability有关系。C选项意为“性能；容量；才能”，D选项意为“强度；烈度”。通观全句，extend和man’s senses提示替换词应该是某种感受的“机能，能力”，能够“得到提升”，排除语义不相干的A、B、D选项比较容易。题干替换词为熟词，意为“能力”。
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