根据《中华人民共和国突发事件应对法》,所有单位应当建立健全()制度,定期检查本单位各

题型:填空题

问题:

根据《中华人民共和国突发事件应对法》,所有单位应当建立健全()制度,定期检查本单位各项安全防范措施的落实情况,及时消除事故隐患;掌握并及时处理本单位存在的可能引发社会安全事件的问题,防止矛盾激化和事态扩大;对本单位可能发生的突发事件和采取安全防范措施的情况,应当按照规定及时向所在地人民政府或者人民政府有关部门报告。

考点:安全科学技术应急救援应急救援题库
题型:填空题

小麦一生中吸氮高峰有两个,分别为分蘖至越冬始期和()期。

A、苗期

B、越冬期

C、拔节至孕穗开花期

D、开花结实期

题型:填空题

首发于日本的“痛痛病”是下列哪种元素的慢性中毒()

A.铜

B.镉

C.锌

D.铝

E.砷

题型:填空题

某学生兴趣小组通过实验,探究相同厚度的普通均匀条形玻璃片的振动频率f与其长度l的关系,得到了如下表所示的实验数据,由表中数据可知,振动频率f随玻璃片长度l的变化而__________(选填“均匀”或“不均匀”)变化;振动频率f与玻璃片的长度l的关系为_____________(比例系数用表示)。比例系数k的大小为_____________(若k有单位,请按国际单位制带上其单位),k可能与__________________有关(至少写出一项)。

 音符C调频率f(Hz)玻璃片长度l(mm)
低音区5392290
6440274
7494258
中音区1523251
2587237
3659224
4698217
5784205
6880194
7988183
高音区 1046178
1174168
1318158
 

题型:填空题

阅读理解。

     I've loved my mother's desk since I was just tall enough to see above the top of it as Mother sat doing

letters. Standing by her chair, looking at the ink bottle, pens, and white paper, I decided that the act of writing

must be the most wonderful thing in the world.

     Years later, during her final illness, Mother kept different things for my sister and brother. "But the desk",

she said, "is for Elizabeth".

     I never saw her angry, never saw her cry. I knew she loved me, she showed it in action. But as a young

girl, I wanted heart-to-heart talks between mother and daughter.

     They never happened. And a gulf opened between us. I was "too emotional". But she lived "on the surface".

     As years passed, I had my own family. I loved my mother and thanked her for our happy family. I wrote

to her in careful words and asked her to let me know in any way she chose that she did forgive me.

     I posted the letter and waited for her answer. None came.

     My hope turned to disappointment, then little interest, finally, peace-it seemed that nothing happened. I

couldn't be sure that the letter had even got to Mother. I only knew that I had written it, and I could stop trying

to make her into someone she was not.

     Now the present of her desk told me, as she'd never been able to, that she was pleased that writing was my

chosen work, I cleaned the desk carefully and found some papers inside-a photo of my father and a one-page

letter, folded (被折叠) and refolded many times.

     Give me an answer, my letter asks, in any way you choose, Mother, you always chose the act that speaks

louder than words.

1. The writer began to love her mother's desk _____.[ ]

A. after Mother died

B. before she became a writer

C. when she was a child

D. when Mother gave it to her

2. The passage shows that _____. [ ]

A. Mother wrote her daughter in careful words

B. Mother cared much about her daughter in words

C. Mother was too serious about everything her daughter had done

D. Mother was cold on the surface but kind in her heart to her daughter

3. The word "gulf" in the passage means _____. [ ]

A. part of the sea going far in land

B. free talks between mother and daughter

C. different ideas between the mother and the daughter

D. deep understanding between the old and the young

4. What did Mother do with her daughter's letter asking for forgiveness? [ ]

A. She had never received the letter.

B. She read the letter again and again till she died.

C. For years, she often talked about the letter.

D. She didn't forgive her daughter at all in her life.

5. What's the best title of the passage?[ ]

A. My letter to Mother

B. Mother and Children

C. My Mother's Desk

D. Talks between Mother and Me

题型:填空题

通过设计从源头上减少事故发生,是保障交通安全的最佳手段,道路交通安全设计技术中不包括的是( )。

A.道路线形设计
B.路面设计
C.交叉路口设计
D.安全设施设计

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