一男性患者的Tc-MIBI运动-静息心肌灌注显像如图，你的诊断是() A．左室后间壁

Life is like the four seasons. Now I am very old, but when I was young, it was the spring of my life. I was born, I played a lot, and then I started school. I learned many new things. Like a flower, I grew bigger every day. There were happy days and sorrowful days: some days the sun shone, and some days it didn’t.

In my twenties, I had a good job. I was strong and happy. Then I married (结婚) and had a child. In those days, I didn’t have much time to think. Every day I was busy and worked very hard. And so, I started to get some white hairs. The summer of my life passed quickly.

Then the days got shorter. Leaves fell from the trees. My child was a university student, and then an engineer. My home was much quieter. I started walking more slowly. One day I stopped working. I had more time. I understood this was my autumn, a beautiful time when the trees change color and give us nice fruits.

But the days kept getting shorter and colder. Winter has come. I am older and weaker. I know I do not have many days left, but I will enjoy them to the end.

小题1:The writer started walking more slowly in the          of his life.

A．spring

B．summer

C．autumn

D．winter小题2:According to the passage, which of the following ages is during the summer of his life?

A．15.

B．33.

C．62.

D．87.小题3:What does the word “sorrowful” mean in this passage?

A．Sad.

B．Exciting.

C．Wonderful.

D．Pleasant.小题4:Which of the following is true?

A．The writer was an engineer.

B．The writer had a garden with flowers.

C．The writer was always happy as a child.

D．The writer now is old and weak, but still he enjoys his life.小题5:What’s the best title of this passage?

A．Four Seasons.

B．My Life.

C．Four Seasons in a Year.

D．Four Seasons in My Life.

环境现状调查时，首先应( )。

A．现场调查

B．现场测试

C．现场取样

D．收集资料

将重18N，体积为0.6dm³的金属块浸没在水中，它受到的浮力是_________N；若金属块在水中下沉1m至水池底部静止，则它对池底的压力为__________N；在下沉过程中，金属快重做的功为________J.（g=10N/Kg）

粗集料粒径愈大，其总面积愈小，同时他的堆积空隙率小。需要水泥浆数量愈少。（）

提高企业竞争力的关键是（）。

A.遵守法规以及技术规程

B.经济效益好，有强大的物质基础

C.强化产品质量责任意识

D.技术竞争实力