Which factor has the greatest impact on the estimated per unit labor cost for a project?()
Passage 3 The greatest impact on the family over the last 50 years has been the changing role of the wife. These changes have affected not only her life but also that of her husband and children. (1) The family has changed from an economically defined unit under the authority of the father and having minimal interpersonal emotional ties to a unit with strong emotional ties directed primarily by the mother to her husband and children. One important result was greater emotional and general psychological seclusion of the woman which clearly implied that the female role was culturally a secondary one. In recent decades it has become clear that for a distinct minority of American women the traditional mother role in the seclusion of the home is no longer acceptable. For many the family is of diminishing importance. The development of education for women has been a crucial factor in this change. Today, over 80 percent of all women complete four years of high school as compared to only 35 percent in 1940. This is related to the fact that marriage now occurs a year later for the average woman. The proportion of women aged 20 to 24 who are single increased from 28 percent in 1960 to 40 percent by the mid-1970s. (2) Child bearing is being postponed, so that compared to the 1960s, 10 percent fewer women bear their first Enid in the two years immediately following marriage. Furthermore, more women today remain childless. Work, older age at marriage, and fewer children are the basic changes that have taken place in women’s roles in recent years. The trend among women is toward increased education, and this is linked to other role changes. (3) The higher a woman’s educational attainment, the more likely she is to work, to stay in the labor force longer, and to have more job opportunities available to her. This further suggests that when women are married their work has a great impact on their marriages. For example, since working wives contribute 25 to 40 percent of their total family income, their position as decision-makers in the family is usually strengthened. (4) Waits points out that the social trends towards increased education for women mean not only more work experience but also delayed marriage and decreased fertility. These changes, in turn, point the way toward even greater labor force participation throughout the life cycle. The number of women entering the work force is rapidly increasing. Women outnumber men in the total population by about 7 million. (5) When that is added to the fact that labor force participation of males is slowly declining because of the trend toward earlier retirement, “it may not be too long before one out of every two American workers is a woman.”
Which of the following can cause a ribbon on an impact printer to tear?()
PIMS分析的英文是Profit Impact of Market Strategies的缩写,其含义为市场战略对利润的影响。PIMS研究最早于1960年,在()公司内部开展,主要目的是找出市场占有率的高低对一个经营单位的利润到底有何影响。
By saying “... but the impact of a degree washes out after five years” (Line 3, Para.3), the author means _____.
When there was a direct impact that can be seen on the consumer, the importance of animal welfare could be raised.
____
By saying “... but the impact of a degree washes out after five years” (Line 3, Para.3), the author means _____.
撞击声impact sound
撞击声压级改善量reduction of impact sound pressure level
撞击声压级impact sound pressure level