选择题：During the past generation, the American middle-class family that once could cou

题目内容：

During the past generation, the American middle-class family that once could count on hard work and fair play to keep itself financially secure has been transformed by economic risk and new realities. Now a pink slip, a bad diagnosis, or a disappearing spouse can reduce a family from solidly middle class to newly poor in a few months.

In just one generation, millions of mothers have gone to work, transforming basic family economics. Scholars, policymakers, and critics of all stripes have debated the social implications of these changes, but few have looked at the side effect: family risk has risen as well. Today's families have budgeted to the limits of their new two-paycheck status. As a result, they have lost the parachute they once had in times of financial setback-a back-up earner (usually Mom) who could go into the workforce if the primary earner got laid off or fell sick. This "added-worker effect" could support the safety net offered by unemployment insurance or disability insurance to help families weather bad times. But today, a disruption to family fortunes can no longer be made up with extra income from an otherwise-stay-at-home partner.

During the same period, families have been asked to absorb much more risk in their retirement income. Steelworkers, airline employees, and now those in the auto industry are joining millions of families who must worry about interest rates, stock market fluctuation, and the harsh reality that they may outlive their retirement money. For much of the past year, President Bush campaigned to move Social Security to a saving-account model, with retirees trading much or all of their guaranteed payments for payments depending on investment returns. For younger families, the picture is not any better. Both the absolute cost of healthcare and the share of it borne by families have risen--and newly fashionable health-savings plans are spreading from legislative halls to WalMart workers, with much higher deductibles an

A.The Middle Class on the Alert

B.The Middle Class on the Cliff

C.The Middle Class in Conflict

D.The Middle Class in Ruins

参考答案：【答案仅供学习，请勿对照自行用药等】

答案解析：

选择题：During the past generation, the American middle-class family that once could cou

下图为某地一年中气温日变化的分布图，读图回答题。图中能够说明该地气候干燥，陆地吸热增温迅速的时段是()。查看材料

读“水库蓄洪功能示意图”，回答题。若在我国某大型外流河中上游修建多座以调洪蓄洪功能为主的水库，则()。查看材料

读“水库蓄洪功能示意图”，回答题。随着水库中泥沙淤积不断增多，ab的特点为()。查看材料

下列有关长江沿江地带的开发利用，正确的是()。

下列关于区域地理特征的说法，正确的是()。