（12分）读下图回答下列问题。（1）甲乙丙丁四座山峰，海拔_爱下问搜题

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问题判断题

（12分）读下图回答下列问题。

（1）甲乙丙丁四座山峰，海拔最高的是，该山峰海拔为米。（2分）

（2）甲山峰位于乙山峰的方向，两山峰的实际距离约为千米。（2分）

（3）该地区地形以为主，地势。（2分）

（4）E点所在的地形部位是，F点所在的地形部位是。（2分）

（5）M点所在的地形部位是，N点所在的地形部位是。（2分）

（6）①和②为两条登山路线，你选择哪条？请说明理由。（2分）

答案

（1）甲 952

（2）正东 6

（3）山地东北高，西南低

（4）鞍部陡崖

（5）山谷山脊

（6）选①的理由是：等高线稀疏，坡度缓，省力气．选②的理由是：路途近，省时间．

题目分析：

（1）海拔是地面某一个地点高出海平面的垂直距离，结合图示得知：海拔最高的是甲处，海拔高度为952米．

（2）结合指向标得知：甲山峰位于乙山峰的正东方向；根据比例尺=图上距离/实地距离得出，两山峰的实际距离=5×200000=1000000厘米=10千米．

（3）结合图示得知：该地区的地形以山地为主，地势是东北高，西南低．

（4）E点所在的地形部位是鞍部（两山顶之间相对低洼的部位为鞍部），F点是陡崖（几条海拔不同的等高线重合处为陡崖）．

（5）M点为山谷（等高线向海拔高处凸为山谷）；N点为山脊（等高线向海拔低处凸为山脊）．

（6）两条登山线路各有利弊，选①的理由是：坡度缓，省力气；选②的理由是：路途近，省时间．

选择题

实验中在对某种样品进行检验时，加入试剂顺序的不同对最后结果的判断具有很大影响．某样品中可能含有SO₄^2-，实验中加入试剂种类和顺序正确的是（　　）

A．BaCl₂溶液，稀盐酸

B．稀盐酸，BaCl₂溶液

C．BaCl₂溶液，稀硝酸

D．稀硝酸，BaCl₂溶液

填空题

Of all the employed workers in the United States, 12.5 million are part of a temporary workforce. The United States Bureau of Labor Statistics counts 9.2 percent of workers as those who have______(1) they term "alternative employment arrangements." The government predicts that temporary staffing agencies______(2) experience growth of 49 percent by 2010. If numbers increase at the rate ______ (3), these companies will add 1.9 million new jobs by 2010. That’’s more than any______(4) industry.Temporary workers were the first ones to be affected by the recent economic recession, but they are______(5) to be the first to regain positions as the economy picks up and companies work to rebuild. Employers use temporary workers as a resource because_______(6) offer flexibility and come at a low cost. Many temporaries are categorized as "independent contractors" instead of employees,______(7) allows the employer to avoid______(8) certain taxes. Because they are not required to offer benefits to temporary workers, companies can save a great deal of money by hiring temps. Usually, temporary workers can qualify_______(9) benefits if they work for a staffing company for a certain length of time. Most temps, however, do not continue with one company long______(10) to qualify for them because they regard the position as a step on the ladder to a______(11) position later.According to Richard Wahlquist, president of the American Staffing Association, 75_______(12) of temporary workers hope for transition out of the temporary staffing category______(13) a period of time. Wahlquist finds that temporary workers spend about 11 weeks on various assignments before their______(14) out of the temporary workforce. Many use temporary positions to gain experience and skills______(15) they move on to better jobs. Wahlquist says that the temp workforce as a whole turns______(16) 400 percent each year.Tom Dilworth, research director at the Employment Policies Institute, explains______(17) some workers like having temporary jobs______(18) it affords them a great deal of elasticity with time and everything. Some temps only have a limited______(19) of time to work and temp agencies can help coordinate jobs to fit their schedules. Other sometimes-employees use temporary jobs to get an______(20) to a company from the inside, to get a foot in the door of a certain business or career._______(21) others take temporary positions in hopes their employers will change them over to permanent positions eventually.Nearly all the industries in the United States use temporary workers.______(22) to Tim Costello, coordinator of the North American Alliance for Fair Employment, the growth of temporary labor threatens______(23) job security of permanent workers who fear replacement, as well as the temps who are more accustomed to turnover. He predicts that there will continue to______(24) a gradual shift from permanent employees to contingent staffing, and that such a_____(25) in workplace demographics will "lead to lower wages, poorer working conditions, and more instability."