在飞行操纵过程中,升降舵的主要作用是()A、提供升降舵偏转角 B、提供对飞机重心的俯仰

题型:单项选择题

问题:

在飞行操纵过程中,升降舵的主要作用是()

A、提供升降舵偏转角

B、提供对飞机重心的俯仰力矩

C、提供对飞机重心的倾斜力矩

D、提供对飞机重心的偏航力矩

考点:科普知识竞赛民航概论民航概论题库
题型:单项选择题

在一个有n个元素的顺序表的第i个元素(1≤i≤n);之前插入一个新元素时,需要向后移动 【2】 个元素。

题型:单项选择题

考虑系统开发战略化策略的根本出发点是( )。 Ⅰ.是企业的重大建设项目 Ⅱ.应是一项技术和社会性工程 Ⅲ.应涉及到企业高层管理人员、业务技术管理人员、计算机技术员以及用户 Ⅳ.应涉及多学科技术 Ⅴ.强调投资后的经济效益和社会效益

A.Ⅰ、Ⅲ

B.Ⅰ、Ⅴ

C.全部

D.Ⅱ、Ⅳ

题型:单项选择题

下列人员为个人所得税的非居民纳税人的是( )。

A.在中国境内有住所的个人

B.具有中国国籍的国内公民

C.在中国境内居住两年的外籍个人

D.一个纳税年度临时到中国工作讲课的某营销专家

题型:单项选择题

Students often complain(抱怨)their teachers give them too much homework . Now , two reports show that in America this is not true .

The Brookings report shows that most students do less than one hour of homework . The Rand report shows that only 10% of high school students spend more than two hours a night on homework .

The Brookings report also talks about a study from 1995 . American students do almost the least homework among twenty countries . Students in France , Italy and South Africa spend more than two hours on homework .

The Rand report says there was only one time when homework greatly increased in America .During the early 1960s , Americans were not happy when the former Soviet Union (前苏联)became the first country to reach space . People thought it was necessary to improve education .

Parents want their children to have time for sports , music lessons and other things after school. some experts say schools need to give useful homework .

小题1:Students are not happy about _________ .

A.too much homework

B.going to school

C.less homework

D.stay at home小题2:French students usually spend _______ on homework than American students .

A.more time

B.less time

C.more daytime

D.two hours小题3:_______ shows homework once greatly increased in America .

A.The Brookings report

B.The Rand report

C.A university

D.A piece of news小题4:The former Soviet Union was  the _______ to get to space .

A.first

B.second

C.third

D.forth小题5:Some experts think __________ .

A.students don’t work hard enough

B.students should not do any homework

C.homework is welcome if it is useful

D.it isn’t necessary for students to do homework

题型:单项选择题

乙是A市的建材经销商,因资金周转困难,便从A市甲处借了50万元人民币,购买了一批建材,并销售给了B市的丙,约定价款为 60万元人民币,但丙未付款。乙与丙约定的合同履行地在A市。后来,甲要求乙还钱,乙说因为丙没有支付货款,所以无力偿还。鉴于此,甲欲直接起诉丙,要求其支付50万元。请回答下列问题:

在代位权诉讼中,关于债权人、债务人、次债务人三方的关系,下列何种说法是正确的

A.次债务人对债务人的抗辩可以向债权人主张

B.债务人对债权人的债权提出异议,经审查成立的,人民法院应当裁定驳回债权人的起诉

C.债权人胜诉的,诉讼费用由次债务人负担

D.债权人请求人民法院对次债务人的财产采取保全措施的,应当提供相应的财产担保

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