搜题请搜索小程序“爱下问搜题”
问题 填空题

国务院畜牧兽医行政主管部门应当制定（）管理办法，采取措施落实畜禽产品质量责任追究制度。

答案

参考答案：畜禽标识和养殖档案

选择题

根据中学化学教材所附元素周期表判断，下列叙述不正确的是 [ ]

A．K层电子为奇数的所有元素所在族的序数与该元素原子的K层电子数相等

B．L层电子为奇数的所有元素所在族的序数与该元素原子的L层电子数相等

C．L层电子为偶数的所有主族元素所在族的序数与该元素原子的L层电子数相等

D．M层电子为奇数的所有主族元素所在族的序数与该元素原子的M层电子数相等

查看答案
单项选择题

C


Jill lived with her grandma. The old woman was p enough that she could do everything herself at home.
As soon as Jill began to tidy the rooms or wash something, her grandma stopped her and told her to work hard at her lessons. Jill had to listen to her grandma and spent all her time on her study. So she went to college at last.
Now the girl has left college. She did well in all her subjects and easily found work in Mr. Brown’s company. She was sure Mr. Brown would put her in an important position(位置).
On the first day the boss gave her a broom and said, "Your first work is to sweep the offices. "
"What" the girl called out in surprise," I’m a college student, you know. "
"I’m sorry I don’t know that. Here, give me the broom and let me show you!\

______, so she was surprised.

A．Mr. Brown didn’t know Jill was a college student

B．Mr. Brown didn’t know Jill was good at her subjects

C．Mr. Brown didn’t like Jill at all

D．Mr. Brown told Jill to be a cleaner
查看答案