标题: for help!! [打印本页] 作者: drlucky 时间: 2002-12-10 14:45 标题: 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]作者: lucylu 时间: 2002-12-10 21:08