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for help!!
from lzm:E11-30
Unlike other arachnids,which have their nerve cells evenly distributed along their (bodies, the scorpion's nerve cells are clustered in its head, like a mammal's)
A.
C. body, the scorpion has a cluster of nerve cells in its head ,as a mammal does
答案为C，为什么是body呢？前面不是复数吗？虽然可以排除其余选项得到C，但我还是没弄懂为何用单数，也许是印错了！！！！
望高手指点！！！！[em24][em24][em24] |
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