第10题: [单项选择]American economists are surprised to see that ______ A. they have to revise the GDP forecasts so often B. their government is announcing the end of a recession C. US economy is showing some signs of an upturn D. GDP growth reflects stronger domestic demand 参考答案:C 答案解析:第一段是一句话段落,其主干结构是positive surprises…lead economists to…supporting the notion that…。该段提到政府报告带来的意外惊喜使经济