集体合同或专项集体合同签订或变更后，应当自双方首席代表签字之

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问题单项选择题

集体合同或专项集体合同签订或变更后，应当自双方首席代表签字之日起 ( )内，由用人单位一方将文本一式二份报送劳动保障行政部门审查。

A．10日

B．7日

C．15日

D．1个月

答案

参考答案：A

填空题

根据上下文填空。

1. There are so many _______ visiting the Great Wall every year.

2. We can call bicycle _______ for short.

3. The scenery in the _______ is really beautiful.

4. Don't _______ about me, Mom. I can look after myself.

5. She is _______ in hospital. Let us cheer him up.

6. The traffic in our _______ really busy especially in the rush hour.

7. Students in Hongshanhu and Kaishandao have to get to school by _______.

8. In China, bikes and buses are the most popular means of _______.

9. He wanted to go to Greece or Spain for vacation, but _______ on Canada.

10. I don't like to stay outside, I 'd like to _______ videos to watch at home.

选择题

①原子是由位于中心的原子核和核外电子组成的

②带负电的电子在原子核外空间里绕核运动

③原子核所带正电荷与原子核外所有电子总共带的负电荷在数量上相等

④原子核的半径只有原子半径的百万分之一

下列组合都正确的是（　　）

A．①②④

B．②④

C．①②③

D．②③④