these egg were found by a group of scientists .
题目
these egg were found by a group of scientists .
这里一群不是应该看作一个整体 用单数吗 英语这些有类似有复数又有单数的怎么区分 最好举例
答案
These (这些) eggs (复数)were found by a group of scientists.
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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