It can be a good idea for people who lead an active life to increase their .................... of vitamins. A: upturn B: input C: upkeep D: intake

( ) makes the American employees feel a heightened need to prove their worth. A: The employers’ encouragement B: An upturn in economy C: The cozy working environment. D: A downturn in economy.

What is the reason of America’s baby boom? A: Upturn in the economy. B: Strong religious faith. C: The improved quality of life. D: Being full of confidence for the future.

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

America’s baby boom is caused by the upturn in the economy. 未知类型：{'label': 'questionDesc', 'content': '请根据所给材料判断题干是否正确。', 'isMemberControl': 0, 'type': 181} 未知类型：{'label': 'source', 'content': '粉笔英语独家模拟卷 六级 仔细阅读2', 'isMemberControl': 0, 'type': 181}

What is the reason of America’s baby boom? 未知类型：{'label': 'questionDesc', 'content': '请根据材料选择正确答案。', 'isMemberControl': 0, 'type': 181} 未知类型：{'label': 'source', 'content': '粉笔英语独家模拟卷\xa0六级\xa0仔细阅读2', 'isMemberControl': 0, 'type': 181} A: Upturn in the economy. B: Strong religious faith. C: The improved quality of life. D: Being full of confidence for the future.