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  3. The feathers of birds (not only) protect their skin from injury and conserve (bo

The feathers of birds (not only) protect their skin from injury and conserve (bo

游客2024-01-05  19
问题 The feathers of birds (not only) protect their skin from injury and conserve (body heat), but also (function) in flight, courtship, camouflage, and sensory (perceptive).
选项 A、not only
B、body heat
C、function
D、perceptive
答案 D
解析
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