砌筑砖墙时设置皮数杆的主要作用是()。A、控制砌筑速度B、控制墙身垂直度C、防止出现

题型:单项选择题

问题:

砌筑砖墙时设置皮数杆的主要作用是()。

A、控制砌筑速度

B、控制墙身垂直度

C、防止出现裂缝

D、控制每皮砖和各附件的标高

考点:施工员设备安装工程设备安装工程题库
题型:单项选择题

某女,46岁,缺失,曾做可摘局部义齿修复,但由于缺隙间隙小,颌间距离短,修复2月后义齿折断来院就医,要求再次做可摘局部义齿修复。为避免义齿再次折断,我们应将义齿制作成()

A.金属

B.金属基底

C.烤瓷

D.全瓷

E.以上都不是

题型:单项选择题

如图中所示,可判断出邮票到放大镜的距离(  )

A.小于焦距

B.大于焦距,小于两倍焦距

C.等于两倍焦距

D.大于两倍焦距

题型:单项选择题

办公信息系统是计算机和相关办公设备在什么环境下的一类面向办公应用的计算机信息系统

A.计算机

B.网络

C.办公

D.集体

题型:单项选择题

Some years ago, writing in my diary used to be a usual activity. I would return from school and spend the expected half hour recording the day’s events, feelings, and impressions in my little blue diary. I did not really need to express my emotions by way of words, but I gained a certain satisfaction from seeing my experiences forever recorded on paper. After all, isn’t accumulating memories a way of preserving the past?

When I was thirteen years old, I went on a long journey on foot in a great valley, well-equipped with pens, a diary, and a camera. During the trip, I was busy recording every incident, name and place I came across. I felt proud to be spending my time productively, dutifully preserving for future generations a detailed description of my travels. On my last night there, I wandered out of my tent, diary in hand. The sky was clear and lit by the glare of the moon, and the walls of the valley looked threatening behind their screen of shadows. I automatically took out my pen…

At that point, I understood that nothing I wrote could ever match or replace the few seconds I allowed myself to experience the dramatic beauty of the valley. All I remembered of the previous few days were the dull characterizations I had set down in my diary.

Now, I only write in my diary when I need to write down a special thought or feeling. I still love to record ideas and quotations that strike me in books, or observations that are particularly meaningful. I take pictures, but not very often—only of objects I find really beautiful. I’m no longer blindly satisfied with having something to remember when I grow old. I realize that life will simply pass me by if I stay behind the camera, busy preserving the present so as to live it in the future.

I don’t want to wake up one day and have nothing but a pile of pictures and notes. Maybe I won’t have as many exact representations of people and places; maybe I’ll forget certain facts, but at least the experiences will always remain inside me. I don’t live to make memories—I just live, and the memories form themselves.

小题1:Before the age of thirteen, the author regarded keeping a diary as a way of ______.

A.observing her school routine

B.expressing her satisfaction

C.impressing her classmates

D.preserving her history小题2:What caused a change in the author’s understanding of keeping a diary?

A.A dull night on the journey.

B.The beauty of the great valley.

C.A striking quotation from a book.

D.Her concerns for future generations.小题3:What does the author put in her diary now?

A.Notes and beautiful pictures.

B.Special thoughts and feelings.

C.Detailed accounts of daily activities.

D.Descriptions of unforgettable events.小题4:The author comes to realize that to live a meaningful life is ______.

A.to experience it

B.to live the present in the future

C.to make memories

D.to give accurate representations of it

题型:单项选择题

“中心--外围理论”和相关“贸易条件恶化论”的提出者是()。

A.普雷维什

B.俄林

C.辛格

D.邓林

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