螺纹表面的摩擦使螺纹连接有“自锁”性,螺距越小,自锁力越大。( )

题型:判断题

问题:

螺纹表面的摩擦使螺纹连接有“自锁”性,螺距越小,自锁力越大。( )

考点:锅炉设备装配工高级锅炉设备装配工高级
题型:判断题

Our bedroom has no full-length mirror. There is one at the canteen entrance. I always cherish a secret desire to take a glance before it at myself in a beautiful new dress. However, each time when it comes to the fulfillment, I get seized with such an uneasiness that I literally stagger(踉跄) away—backing out at the critical moment.

At the root of it is my lack of confidence by which I have been enslaved since childhood. It embarrasses me at the mildest praise, crushes my utmost efforts to say “No”, and prevents me from asking my parents for one cent more than necessary. Among other things, lack of confidence has wormed its way into my love of piano.

At the age of 14, one Sunday morning, I was woken up by a resounding hymn(洪亮的圣歌). Tracing that call of God into a neighboring church, I found myself deeply attracted by the melody of a piano—something beyond the means of my parents. To make it worse, people say a pianist is supposed to have music in the blood, but I believe I had none from my engineer father and technician mother. For days on end, I kept thinking of nothing else. I had a dream.

It wasn’t a dream after gold, which made some of my close friends to engage in business as self-employed traders or street peddlers. I was sometimes dazzled by their gold rings or elegant necklaces behind which, however, I seemed to catch sight of skeletons in their cupboards and was frightened away from the craze for fortunate. Out of despair, I kept it to myself, lack of confidence weighing heavy on me. I could do nothing but turn to my dream for comfort, for courage to aim high and wish for the impossible. I was convinced that before I could afford anything expensive (to me, it was a piano), I should climb up the academic ladder as high as possible.

For the next nine years, I carefully held back my desire for music to keep my search for learning, especially in English studies. My efforts were so rewarding that I went successfully through high school and college in my hometown. When I received the admission notice for a second degree course at a famous university in Beijing, the national capital, tears welled up in my eyes. I knew my command of English was my wealth, for I might make a deal with a pianist who would give me access to his piano in exchange for English lessons. And that has come true!

To this day, whenever I lay my fingers on the snow-white keyboard, ready for a melody, I still feel shy. I am quite aware of my limited music talent, but as a shy dreamer, I have found my way to success.

小题1:According to the first two paragraphs, we can learn that the writer is __________.

A.helpless

B.shy

C.honest

D.considerate小题2: Why did the writer say her desire for the piano was a dream in the third paragraph?

a. Her parents couldn’t afford a piano.

b. Her parents didn’t want her to engage in music.

c. She thought she had no gift for music.

d. She could do nothing but accept the reality.

A.a, b

B.c, d

C.a, c

D.b, d小题3: How did the writer make her dream of playing the piano come true?

A.She turned to her friends for financial aid.

B.She taught English in exchange for piano lessons.

C.She was admitted to a university for a second degree course in music.

D.She earned money by doing a part-time job to pay for her piano lessons.小题4: What can we learn from the writer’s example?

A.Wealth always comes after a great effort.

B.Confidence is a key factor in success.

C.We should be academically successful before other achievements.

D.We should make every effort to turn a dream into reality.

题型:判断题

A公司是一家具有独立生产能力的、中等规模的医药股份公司,在国内拥有十几家分公司和办事处,经济效益较好,技术研发实力较强。虽然该公司发展较快,但它的绩效管理系统存在很大的问题,特别是在工作绩效的改进方面一直裹足不前,导致企业无法实现跨越式发展。  请结合本案例回答以下问题:

该公司为了改进并提高全员的工作绩效可以采取哪些策略

题型:判断题

柴油机曲轴的输出端是输出功率的一端,它又称前端。

题型:判断题

属痿证之脾胃亏虚,精微不运证的是()

A.肢体痿软无力,逐渐加重,食少,便溏,腹胀,面浮不华

B.热病后突然出现肢体软弱无力,皮肤枯燥,心烦口渴

C.四肢痿软无力,伴颜面红斑赤肿,烦躁不宁

D.四肢痿软,身体困重,足胫热气上腾

E.下肢痿软无力,腰脊酸软,不能久立

题型:判断题

汽油发动机产生的主要有害排放物不包括()。

A.碳氢化合物

B.一氧化碳

C.微粒物

更多题库