There may be other life forms in the universe because over 50 extrasolar planets were discovered in 2001. According to the auth

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问题 There may be other life forms in the universe because over 50 extrasolar planets were discovered in 2001.
According to the author’s imagination, in order to glide on the sand smoothly, the creature Lashlarm must have______.

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答案many scales

解析 由题干关键词Lashlarm和glides on the sand可将答案定位至倒数第二段第四句:Underneath the base are many scales,so the base glides across the surface of the sand much like a snake moves along the ground,即可得出答案为many scales。
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