语法!老师,我想问一下,这几个的区别
Taste buds are xxx,each of them has x. 是错的,each of them has x 这里是一个单独的句子
Taste buds are xxx,each of which has xxx.对了,each这个句子是定语从句吗?还是同位语从句?
Taste buds are xxx,each has…跟each of them has ……是一样的吗
Taste buds are xxx,each having…是同位语修饰吗
想问一个数学题,有一组数,问能否确定range?
1. mean is given
2. standard deviation is given
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解答:
ken@boost.org.cn老师
提问:
7/15寂静:所有员工都大于20岁. Of the 2000 employees, is the avg age at least 35?
1. 50% 员工是大于40岁
2. 25% 员工是大于65岁
这道题网上有C和E两种争论;我所不明白的点是:条件2中的25%是否包含在条件1的里面;我觉得答案应该是C。因为:35*2000=70000岁;(1)+(2)可得41*500+66*500+21*1000=74500>70000.不知道我的思路是否正确。谢谢老师的答疑!