Why can businessmen make money in the emerging elder market A: Retirees are more generous in spending money. B: They can employ more gerontologists. C: The elderly possess an enormous purchasing power. D: There are more elderly people working than befor

The survey conducted by Harris Poll indicates that[u]        [/u]. A: over half of the retirees are physically fit for work B: the old workforce is as active as the younger one C: one in three Americans enjoy earlier retirement D: more Americans are willing to work in retirement 未知类型：{'label': None, 'content': '', 'isMemberControl': 0, 'type': 181} 未知类型：{'label': None, 'content': '', 'isMemberControl': 0, 'type': 181}

The paragraph below contains irrelevant sentences. Look at the initial sentence in each paragraph to see what the focus of that paragraph should be and identify the irrelevant sentences. ( ) Newspaper crosswords are becoming increasingly popular. a) There is good evidence that doing crosswords helps you to avoid mental degeneration in later life. b) Newspaper sales have been in decline for several years. c) Many editors blame the increase in television news for the decline in sales. d) Tests with retirees who regularly complete crosswords have shown higher levels of the chemicals associated with mental alertness. e) The participants in the survey reported feeling more alert and interested in life than a control group who did not do crosswords. f) All the participants agreed that The Sun is an awful paper.