试题与答案

有关岩石圈的说法,正确的是 A.岩石圈是由岩石组成的,属于地壳的一部分 B.岩石

题型:选择题

题目:

有关岩石圈的说法,正确的是

A.岩石圈是由岩石组成的,属于地壳的一部分

B.岩石圈位于上地幔的上部,软流层以下

C.岩石圈包括地壳和上地幔的全部

D.岩石圈包括地壳和上地幔顶部,处于软流层以上

答案:

答案:D

题目分析:岩石圈是由岩石组成的,它包括整个地壳和软流层以上的地幔部分,厚度不一,是一个连续的圈层。

点评:本题难度较小,另外本题也可结合示意图考查岩石圈的范围。如下图所示:

该图分左右两部分,左上图是地震波由地表向地心传播过程中波速随深度的变化情况(注意左侧的深度尺),上方横坐标表示地震波速度,图内两条曲线分别表示横波和纵波。地震波在通过同一介质时,波速慢者为横波,快者为纵波。并可根据两种地震波在传播过程中速度的变化情况,相互补充,相互印证,推断地球内部不同深度的物质性质、状态的变化。右上图是地球内部根据左图作出的判读结果。

试题推荐
题型:单项选择题

The Bush administration is about to propose far-reaching new rules that would give people with disabilities greater access to tens of thousands of courtrooms, swimming pools, golf courses, stadiums, theaters, hotels and retail stores. The proposal would substantially update and rewrite federal standards for enforcement of the Americans With Disabilities Act, a landmark civil rights law passed with p bipartisan support in 1990. The new rules would set more stringent requirements in many areas and address some issues for the first time, in an effort to meet the needs of an aging population and growing numbers of disabled war veterans.

More than seven million businesses and all state and local government agencies would be affected. The proposal includes some exemptions for parts of existing buildings, but any new construction or renovations would have to comply. The new standards would affect everything from the location of light switches to the height of retail service counters, to the use of monkeys as "service animals" for people with disabilities, which would be forbidden’.

The White House approved the proposal in May after a five-month review. It is scheduled to be published in the Federal Register on Tuesday, with 60 days for public comment. After considering those comments, the government would issue final rules with the force of law. Already, the proposal is stirring concern. The United States Chamber of Commerce says it would be onerous and costly, while advocates for disabled Americans say it does not go far enough.

Since the disability law was signed by the first President Bush, advances in technology have made services more available to people with disabilities. But Justice Department officials said they were still receiving large numbers of complaints. In recent months, the federal government has settled lawsuits securing more seats for disabled fans at Madison Square Garden in New York and at the nation’s largest college football stadium, at the University of Michigan.

The Justice Department acknowledged that some of the changes would have significant costs. But over all, it said, the value of the public benefits, estimated at $ 54 billion, exceeds the expected costs of $ 23 billion. In an economic analysis of the proposed rules, the Justice Department said the need for an accessible environment was greater than ever because the Iraq war was "creating a new generation of young men and women with disabilities". John L. Wodatch, chief of the disability rights section of the Justice Department, said:"Disability is inherent in the human condition. The vast majority of individuals who are fortunate enough to reach an advanced age will benefit from the proposed requirements.

Which of the following statement best summarizes the text()

A. Expensive Changes Proposed by Bush

B. Plan Seeks More Access for Disabled

C. The Revision of the Americans With Disabilities Act

D. Comments on the Governmental Proposal

查看答案
题型:实验题

用DIS研究一定质量气体在温度不变时,压强与体积关系的实验装置如图1所示,实验步骤如下:

①把注射器活塞移至注射器中间位置,将注射器与压强传感器、数据采集器、计算机逐一连接;

②移动活塞,记录注射器的刻度值V,同时记录对应的由计算机显示的气体压强值p

③用V-1/p图像处理实验数据,得出如图2所示图线。

(1)为了保持封闭气体的质量不变,实验中采取的主要措施是__________                             

(2)为了保持封闭气体的温度不变,实验中采取的主要措施是________________和__________________;

(3)如果实验操作规范正确,但如图2所示的V-1/p图线不过原点,则V0代表___________________________________________________________。

(图1)                                                      (图2)

查看答案
微信公众账号搜索答案