下图为元素周期表前四周期的一部分，下列有关R、W、X、Y、Z五种元素的叙述中，正

IBM在国外长期推选（）战略。

为观察关节腔积液的凝固性，应采用第几管的标本（）。

A.第一管

B.第二管

C.第三管

D.第四管

E.第五管

阅读理解。

     In our home it was natural to fear our father . Even our mother was afraid of him. As children, my

sister and I thought every family was like that. Every family had an unpredictable dad who was impossible

to please and a praying mom who was there to protect the children.

     We were good children. Mom was always telling us we were, even if Daddy couldn't see it . part of

this was because we didn't dare to do anything.

     Then came the day we found something new and fun to do. We worked at drawing with chalk on our wooden front door and making lots of pretty pictures all over it. We had a great time. We thought Mom

would love it and praise us.

     The praise we expected did not come. Instead, Mom was mad. We did not understand why, but we

knew we were in big trouble!

     Off we ran to find a place to hid. In our wooded yard it was not hard for two small children to find

safety. Together, we hid behind a tree and did not move. Soon we heard the frightened voices of Mom

and our neighbors calling out to us.

     The sun set and it began to get dark. Those around us became more anxious, and we became more

frightened. However, we still didn't move.

     As we clung (紧紧拥抱) together in the dark, we became aware of yet another voice, one we

recognized with great fear: our daddy. But there was something strangely different about it. In it we heard

something we had never heard before: fear, agony (痛苦) and despair. Then came his prayers in tearful

voice. Our daddy was promising God that he would give his life to him if he would safely return his girls.

     Nothing in our lives had prepared us for this kind of shock. Neither of us remembers making a

decision to come out. We were drawn to him like a magnet (磁铁), our fears disappearing into the forest. We didn't know yet if we actually took steps or if God somehow moved us out and into Daddy's arms.

What we do remember were those strong, loving arms holding us and crying, hugging us like we were

precious.

     Things were different after that. We had a new daddy. Our whole family was changed by a piece of

chalk.

1. From the first two paragraphs, we can learn _____.

A. the author was very naughty when young

B. the children were proud of their mother

C. the author's father was difficult to please

D. the author's father was afraid of her mother

2. The children's drawing on the door _____.

A. brought them great trouble

B. gained their mother's praise

C. made their father very angry

D. failed to meet their mother's demands

3. Which shows the children's emotional change when they heard their father's voice?

A. Anxious→content →miserable

B. Frightened→happy→depressed

C. Excited→fearful→desperate

D. Scared→shocked→moved

4. The underlined sentence"We had a new daddy"implies that _____.

A. the relationship between the family members changed

B. the author's father developed an interest in drawing

C. the author's mother found a new husband

D. the children were afraid of their new father

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

A. The belief in God

B. A piece of chalk

C. The big trouble of my mother

D. A painful memory of my childhood.

蒋某因轻伤害案件被提起公诉，法院决定适用简易程序进行审理，则下列选项正确的是( )

A．该法院应当在受理后1个月内宣判

B．该法院应在受理后15日内审结

C．可以不听取被告人的最后陈述

D．人民检察院可以不派员出庭支持公诉

背景：某工程用混凝土，经和易性调整、强度校核及表观密度测定，确定其单位用水量为190Kg，砂率宜用0.34，水灰比应用0.50，该混凝土的表观密度为2400kg/m3。

（一）计算该混凝土的试验室配合比。

（二）若该项混凝土用42.5强度等级的普通水泥（实测强度为48.0MPa）、碎石、中砂，估算其28天抗压强度。

（三）若掺用木钙减水剂，经试验减水率15%，计算每立方米混凝土的水泥用量。

（四）若施工现场砂含水率为3%，石子含水率为1%，计算施工配合比。

（五）若用I级粉煤灰取代部分水泥（取代率20%，超量取代率1.5），试调整其配合比（根据问题一所计算的试验室配合比）

附：

采用碎石时：αa=0.46，αb=0.07

几种材料的视密度：砂为2.68g/cm3水泥为3.0g/cm3粉煤灰为2.2g/cm3）。

该混凝土的28天抗压强度估算值为（）。

A：42.61MPa

B：44.45MPa

C：46.27Mpa

D：48.50MPa