链传动中作用在轴和轴承上的载荷比带传动要小,主要由于()。A、链传动的功率小   B

题型:单项选择题

问题:

链传动中作用在轴和轴承上的载荷比带传动要小,主要由于()。

A、链传动的功率小  

B、链速较高,在传递相同功率时,圆周力小  

C、链传动是啮合传动,无需很大的初拉力    

D、链质量大,离心力也大

考点:烟机设备修理工考试初级打叶复烤修理工初级打叶复烤修理工题库
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People often hear bad news on TV, the “Touching China” award on Tuesday sends a different message. The award honors(给...以荣誉) ten of China’s role models(道德模范) in 2012. The award winners are carefully selected(推选) by people. The “Touching China” award has been held every year since 2003.

Luo Yang is one of the ten role models. He is the late Commander in chief(前总指挥官) of the program for developing the J-15 fighter(歼-15战斗机). He died from overwork. And Lin Junde, a scientist who dedicated his whole life to China’s nuclear course(核事业). There are also ordinary citizens(公民) who have made a difference, like Zhang Lili.

Zhang Lili, 29, a Chinese language teacher at No. 19 Middle School in the city of Jiamusi, Heilongjiang Province. On the evening of May 8, Zhang was crossing the road outside the school gate with several students. A school bus came rushing towards them. Zhang pushed two students out of the way. They were saved, but Zhang was hit. She was sent to the local hospital but lost both her legs. When facing the choice between life and death — for her students and for herself, Zhang chose to protect her students. Many people were deeply moved by her story. Now people thinks she is the Most Beautiful Teacher in China.

小题1: The “Touching China” award is held _________.

A.in May

B.every four years

C.once a year

D.in 2003小题2:What does the underlined word dedicated mean in Chinese?

A.赠予

B.奉献

C.提供

D.回报小题3:What happened when Zhang was crossing the road?

A.The school bus rushed to them.

B.Two students fell over at the school gate.

C.Zhang found a bus stop on the road.

D.Several students were ill.小题4: Which of the following is TRUE according to the passage?

A.Every ordinary citizen can have the chance to win the “Touching China” award.

B.The “Touching China” award honors ten China’s scientists as role models of 2012.

C.The “Touching China” award tells us bad news like other TV programs.

D.Zhang Lili is a really beautiful and brave teacher.小题5:What’s the best title of the passage?

A.Two great scientists.

B.The “Touching China” award of 2012.

C.The Most Beautiful Teacher.

D.A moving story of Zhang Lili.

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已知A物质是一种气态烷烃,标况下取22.4L该烃完全燃烧消耗氧气的质量是160g,A的一氯代物有两种同分异构体分别为B和C。各物质转化关系如下图所示:(部分反应物及产物略去)

 又知:H不能发生银镜反应,请从反应图式中各物质间的关系,回答下列问题:

(1) 写出下列物质的结构简式:A___________________ C___________________

(2)写出下列反应的化学方程式:(注明反应条件及反应类型)

A→B: _________________________________反应类型________

B→D: _________________________________反应类型________

E→H: _________________________________反应类型________

G+E→I: _______________________________反应类型________

(3)已知H的一种同分异构体K能发生银镜反应,写出K与银氨溶液反应的化学方程式:________________________________________________

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水冷段空过管共有()节。

A.7

B.9

C.11

D.12

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某市税务局接到群众举报,辖区内某服装厂开业两个月没有纳税。税务局遂对该服装厂进行税务检查,经查,该服装厂自正式投产没有办理税务登记,没有申报纳税。税务局作出处理决定:1、责令服装厂限期办理税务登记,并处5000元罚款。2、按规定补缴税款,加收滞纳金,并处未缴税款二倍罚款,并向该服装厂送达《税务处罚事项告知书》、《税务处理决定书》和《税务行政处罚决定书》。服装厂认为本厂刚开业,产品为试销阶段,回款率低,请求税务局核减税款和罚款,税务局经调查,认为服装厂提出理由不成立,遂下达《催缴税款通知书》,催缴欠缴的税款、滞纳金和罚款。在催缴期间,税务局发现服装厂在偷偷转移资金,未等催缴期限结束,即做出了强制执行决定。

关于市税务局强制执行,下列说法正确的是()。

A.市税务局加收滞纳金可以超过欠缴税款

B.自市税务局加收滞纳金超过15日,经催告,服装厂仍不缴纳的,市税务局可以

C.在催缴期间,市税务局不得强制执行

D.在催缴期间,市税务局强制执行合法

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CMOS SETUP程序是一个很重要的程序模块,PC机刚加电时若按下某一热键(如 Del键)则可启动该程序,使用户可以修改COMS中的配置信息。该程序固化在______中。

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