(1)写出下列物质在水溶液中的电离方程式氢氧化钡______硫酸铝______

题型:填空题

问题:

(1)写出下列物质在水溶液中的电离方程式氢氧化钡______硫酸铝______

(2)写出下列反应的离子方程式或化学方程式:

硫酸溶液与澄清的石灰水混合______;碳酸氢钠溶液与稀盐酸混合______;MgO+2H+═Mg2++H2O______.

考点:离子方程式电离方程式
题型:填空题

(1)生铁和钢都是______的合金,但钢的性能比生铁优越,主要是因为钢的含碳量比生铁______(填“高”或“低”);

(2)铁在______中易生锈,铁锈的成分很复杂,主要是(写化学式)______.

题型:填空题

阅读理解

    Many parents don't love to read to their children.But there are so many professionals and PhDs doing

the opposite thing.And they really promote reading to children, which is so good for children.I have found

that this is true with my own children.

     I am not sure if it is the book or the fact that you are spending quality time with them, undivided time

that they will remember for their entire life.Reading to children is one of the most bonding experiences you can have.

      Children enjoy sitting on your lap while your voice flows over them.As the reader it is fun to watch

their littl e faces as they are moved with the flow of the story.They are laughing one moment and on the

next page the story has moved them to tears.As the storyteller, I am just as moved as they are;I am

caught up in the story as our emotions flow up and down.You can easily lose a whole afternoon in reading.

      This is an experience that children then try to pass on to younger children, reading books to them.My

daughter was so into reading that if she couldn't line up some neighbors'children she could be reading her

books to, she would line up her stuffed animals and read to them.Well, she also tried to teach her neighbors and teddy bears math, and "ocean science "as she called it.She would read anything she could to them.

And to my astonishment the neighbors'parents told me they really appreciated the fact that their children

were doing so much better in school.

1. The writer mentions the idea of professionals and PhDs so as to ________.

A. introduce his own viewpoint

B. show the importance of his idea

C. please readers

D. attract the attention of readers

2. The writer mentions his own children in this text for the purpose of ________.

A. showing the cleverness of his children

B. explaining the advantages of reading to children

C. telling the importance of studying together with parents

D. showing his children were interested in reading

3. The writer thinks that ________.

A. you should place your children on your lap while reading to them

B. children's feelings change while you read books to them

C. it is easy to kill time while you are reading books to children

D. reading to children is one of the most interesting experiences

4. According to the text, which of the following is NOT true about the writer's daughter?

A. She lined up some neighbors'children and read to them.

B. She lined up her stuffed animals and read to them.

C. She would teach her teddy bears math and "ocean science".

D. She would read anything she could to her parents.

题型:填空题

可以选择输入数据或空格的输入掩码是( )。

A) 0
B) <
C) >
D) 9

题型:填空题

考试录用作为政府录用人员的一种制度,最早起源于我国古代的科举制度。科举制度即分科举士,形成于我国的()

A、宋朝

B、明朝

C、隋朝

D、唐朝

题型:填空题

生育保险基金由劳动部门所属的社会保险经办机构负责()。

A.收缴

B.实收

C.支付

D.管理

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