文章：According to many analysts, labor-management relations in the United States are undergoing a fundamental change: traditional adversarialism is giving way to a new cooperative relationship between the two sides and even to concessions from labor. These analysts say the twin shocks of nonunion competition in this country and low-cost, high-quality imports from abroad are forcing unions to look more favorably at a variety of management demands: the need for wage restraint and reduced benefits as well as the abolition of "rigid" work rules, seniority rights, and job classifications. Sophisticated proponents of these new developments cast their observations in a prolabor light. n return for their concessions, they point out, some unions have bargained for profit sharing, retraining rights, and job--security guarantees. Unions can also trade concessions for more say on the shop floor, where techniques such as quality circles and quality-of-work­ life programs promise workers greater control over their own jobs. Unions may even win a voice in investment and pricing strategy, plant location, and other major corporate policy decisions previously reserved to management. Opponents of these concessions from labor argue that such concessions do not save jobs, but either prolong the agony of dying plants or finance the plant relocations that employers had intended anyway. Companies make investment decisions to fit their strategic plans and their profit objectives, opponents point out, and labor costs are usually just a small factor in the equation. Moreover, unrestrained by either loyalty to their work force or political or legislative constraints on their mobility, the companies eventually cut and run, concessions or no concessions. Wage-related concessions have come under particular attack, since opponents believe that high union wages underlay much of the success of United States industry in this century. They point out that a long-standing principle, shared by both management and labor, has been that workers should earn wages that give them the income they need to buy what they make. Moreover, high wages have given workers the buying power to propel the economy forward. f proposals for pay cuts, two-tier wage systems, and subminimum wages for young workers continue to gain credence, opponents believe the U.S. social structure will move toward that of a less-developed nation: a small group of wealthy investors, a sizable but still minority bloc of elite professionals and highly skilled employees, and a huge mass of marginal workers and unskilled laborers. Further, they argue that if unions willingly engage in concession bargaining on the false grounds that labor costs are the source of a company's problems, unions will find themselves competing with Third World pay levels-a competition they cannot win. 想请问郭老师，这题opponents观点是在第三段，但是原文和选项要怎么对照呢...怎么从观点看出态度？

r/t=2? 条件1：点（r,t）在（0，y）和（x，0）这条直线上，x和y不记得了 条件2：点（r,t）过（0，4）和（3，6）

K P M是三个正整数，问KP+M是奇数吗？ 条件1：KM+P是奇数 条件2：PM+K是偶数

DS：x/a+y/b=1，求该直线与x轴的交点？ 条件1：b=3 条件2：a=b

PS：m,p都是正整数，p是质数。x2-mx+p=0这个方程的根是正数。求m-p的值？ 选项有1，2，4之类。

DS：有12个人给老师买礼物，每个人至少出一块钱，总共出的钱是否不少于30 条件1：有一半的人至少出3块钱 条件2：4个人出的钱至少是出钱最少的人出的钱的5倍

DS：定义F(n)=n/k的余数，问K>10？ 条件1：F(n+32)=6 条件2：F(n+42)=8

PS：一个国家telephone exchange numbers有七个digits，但前三个digits都是一样的数字，例都是932打头。问至少需要多少个数字(minimum required number)可以组成282000个telephone exchange numbers？ 选项是：三个2十几的数字和两个2百几的数字。

DS：a,b,c,d互不相等，(a-c)/(b-d)=a/b吗？ 条件1：a/b=c/d 条件2：(a+c)/(b+d)=a/b

PS：the value of （4^8 - 8^16）/（2^12 – 4^16）

PS：讲一个租赁汽车的公司每一次购买会购买5辆新车，每次卖掉会卖掉3辆旧车，今年新增了14辆车，把每次买和每次卖都算做一次交易，问今年最少做了几次交易？