空压机中的活塞环在活塞槽内应能自由活动,当用手压紧时,活塞环应能全部埋入槽内而和活塞

题型:填空题

问题:

空压机中的活塞环在活塞槽内应能自由活动,当用手压紧时,活塞环应能全部埋入槽内而和活塞表面成一(),此时活塞环表面离活塞表面的距离应在()之间。

考点:资格类灰化检修工(高级)灰化检修工(高级)题库
题型:填空题

将宏观、微观及化学符号联系在一起是化学学科的特点.

(1)根据下表信息,完成表中空格:

化学符号2H______Mg2+______
符号的意义______2个氮分子______五氧化二磷中磷元素的化合价为+5价
(2)A、B、C、D表示四种物质,其微观示意图如下所示:

①从微观角度看,A图表示:3______(填化学符号)

②从宏观角度看,图中表示混合物的是______,单质的是______,化合物的是______(填字母代号).

题型:填空题

列入《出入境检验检疫机构实施入境验证的进口商品目录》内的进口商品,海关在办理通关手续时需加验检验检疫机构签发的《入境货物通关单》。( )

题型:填空题

定期订购的特征是()。

A.订购批量固定

B.订购批量不定

C.订购周期固定

D.订购周期不定

E.订购点固定

题型:填空题

C

Some people bring out the best in you in a way that you might never have fully realized on your own. My mom was one of those people.

My father died when I was nine months old, making my room a single mother at the age of eighteen. While I was growing up, we lived a very hard life. We had little money, but my mom gave me a lot of love. Each night, she sat me on her lap and spoke the words that would change my life, "Kemmons, you are certain to be a great man and you can do anything in life if you work hard enough to get it. "

At fourteen, I was hit by a car and the doctors said I would never walk again. Every day, my mother spoke to me in her gentle, loving voice, telling me that no matter what those doctors said, I could walk again if I wanted to badly enough. She drove that message so deep into my heart that I finally believed her. A year later I returned to school—walking on my own!

When the Great Depression(大萧条) hit, "my mom lost her job. Then I left school to support the both of us. At that moment, I was determined never to be poor again.

Over the years, I experienced various levels of business success. But the real turning point occurred on a vacation I took with my wife and five kids in 1951. I was dissatisfied with the second-class hotels available for families and was angry that they charged an extra $ 2 for each child. That was too expensive for the average American family. I told my wife that I was going to open a motel (汽车旅馆)for families that would never charge extra for children. There were plenty of doubters at that time.

Not surprisingly, Mom was one of my pest supporters. She worked behind the desk and even designed the room style. As in any business, we experienced a lot of challenges. But with my mother’ s words deeply rooted in my soul, I never doubted we would succeed. Fifteen years later,we had the largest hotel system in the word—Holiday Inn. In 1979 my company had 1,759 inns in more than fifty countries with an income of $ 1 billion a year.

You may not have started out life in the best situations. But if you can find a task in life worth working for and believe in yourself, nothing can stop you.

Which of the following led to Kemmons’ success according to the passage()

A. Self-confidence, had work, higher education and a poor family.

B. Mom’s encouragement, clear goals, self-confidence and hard work.

C. Clear goals, Mom’ s encouragement, a poor family and higher education.

D. Mom’ s encouragement, a poor family, higher education and opportunities.

题型:填空题

IS014000系列国际标准的核心是IS014001((环境管理体系一、一规范及使用指南》,标准要求组织在其内部建立并保持一个符合标准的环境管理体系。该体系由( )个一级要素和( )个二级要素构成,各要素之间有机结合、紧密联系,形成PDCA(规划、实施、检查、改进)的运行模式。

A.5、14

B.3、14

C.5、17

D.3、17

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