A、Great population. B、Bad labour market. C、Declining economy. D、Collapse of high housing prices. D细节题。文中提到，美国、西班牙及爱尔兰都是失业率攀升最快的国

Indications that unemployment continues to rise is cruel news for leaders heading to the G-20 summit in the United States next week. The Paris-based Organization for Economic Cooperation and Development(OECD)reports unemployment reached its highest level among industrialised nations of 8.5 percent in July.[16]OECD unemployment division chief Stephan Scarpetta says the number of jobless among the OECD’s 30 member countries is expected to climb even higher next year, to nearly 10 percent. That translates into 57 million people out of work.
    "Unfortunately, despite the most recent indicators that suggest the economic recovery may be in sight somewhat earlier than we were expecting only a few months ago, it will take far longer for the recovery to materialize in terms of significant improvement in the labor market," he said.
    The United States, Spain and Ireland are among those countries with the fastest rising unemployment[17]All three were affected by the collapse of high housing prices. The damage spread to other sectors of the economy.
     [18]Scarpetta says young people are among the hardest hit. In Spain, for example, more than one in three young workers are unemployed.
    So as world leaders discuss the financial and economic crisis during their meeting in Pittsburgh, Pennsylvania, Scarpetta says it is important that they also address the social dimensions of the crisis — like unemployment.
16. What is the predicted unemployment rate in the OECD’s 30 member countries?
17. Which of the following can explain the fast rising unemployment in the U.S., Spain and Ireland?
18. Who is under the greatest influence of the serious unemployment situation?