单项选择题
单项选择题
干粉炮系统的干粉连续供给时间不应小于60S。
请计算60s棉纱的特数。
真核生物60s的核糖体大亚基的rRNA是（）
A:28S，16S，5S B:18S，5.8S，16S C:28S，5.8S，5S D:28S，18S
蓄热室温度测量过程中换算为60s的温度。
住宅电梯的运行级别为60s它表示（）。
A:每台电梯在主楼层上最大时间间隔60s B:最高至最低楼层运行时间60s
绝缘极化指数的测量是采用读数为（）和60s的绝缘电阻的比值。
A:120s B:300s C:360s D:600s
测定装置输出功率稳定度时，时间应不少于60s。
Young people in the early 1980s are taking on a set of attitudes and values remarkably different from those of the stormy’ 60s and ’70s. Instead of anti-establishment outbursts, today’s younger generation had turned more thoughtful and more serious. There is heightened concern for the future of the country and a yearning for the traditions and support systems that gave comfort in the past. Many young men and Women of high-school and college age are having second thoughts about the "new morality" and condemn what a soaring divorce rate has done to families. They speak openly of gaining strength from religion. Patriotism, too, seems to be making a modest comeback.
One change in the early 1980s is a questioning of the permissive moral climate of recent years. More young people, while hesitant to preach or to condemn their peers, cite the destructive effects of the drugs and alocohol that are so widely available in the schools. It is peer pressure that pushes teenagers into drugs, but now the habit often is dropped after high school, according to Debbie Bishop, a 22-year-old secretary. James Elrod, a college junior in Kentucky, also reports that use of marijuana on campus has lessened. A Cornell University law student reflects the views of many with the comment: "I think that drug abuse is harmful to your own health and those around you." But he adds: "Drinking is fine only as long as it’s not done to excess."
With the added pressures of a more uncertain world, most young people stress the importance of a healthy family life. Yet, as they look at the family’s breakup that has taken place in the past decade, they concede that the challenge for many is to make the best of one-parent families. "The American family is evolving and changing, "according to Nina Mule, "Women are going out into the world and having careers. They’re becoming more independent instead of being the burden of the family." "But a great need remains for a family structure, "says Nina, who still lives with her parents, "because people have to be able to survive emotionally." In Atlanta, 18-year-old Liss Jciner feels strongly about what’s happened to the family." People have realized that the family has disintegrated, "she says, "But today’s family—particularly the black family—is trying to pull itself together and become the strong unit as it once was. "A similar view is expressed by a senior at Brigham Young University: "A happy family means everything to me. I read a lot about how the American family is falling a part. But I see losts of strong families around me, and that makes me very optimistic./
According to the passage, which of the following statements is NOT true
A:Young people of ’60s and ’70s held radical attitudes towards life. B:Young people of the early 1980s begin to turn back to traditional values. C:Young people of the early 1980s follow the "new morality". D:There were anti-establishment occurrences in ’60s and ’70s.
Text 2
| Young people in the early 1980s are
taking on a set of attitudes and values remarkably different from those of the
stormy’ 60s and ’70s. Instead of anti-establishment outbursts, today’s younger
generation had turned more thoughtful and more serious. There is heightened
concern for the future of the country and a yearning for the traditions and
support systems that gave comfort in the past. Many young men and Women of
high-school and college age are having second thoughts about the "new morality"
and condemn what a soaring divorce rate has done to families. They speak openly
of gaining strength from religion. Patriotism, too, seems to be making a modest
comeback. One change in the early 1980s is a questioning of the permissive moral climate of recent years. More young people, while hesitant to preach or to condemn their peers, cite the destructive effects of the drugs and alocohol that are so widely available in the schools. It is peer pressure that pushes teenagers into drugs, but now the habit often is dropped after high school, according to Debbie Bishop, a 22-year-old secretary. James Elrod, a college junior in Kentucky, also reports that use of marijuana on campus has lessened. A Cornell University law student reflects the views of many with the comment: "I think that drug abuse is harmful to your own health and those around you." But he adds: "Drinking is fine only as long as it’s not done to excess." With the added pressures of a more uncertain world, most young people stress the importance of a healthy family life. Yet, as they look at the family’s breakup that has taken place in the past decade, they concede that the challenge for many is to make the best of one-parent families. "The American family is evolving and changing, "according to Nina Mule, "Women are going out into the world and having careers. They’re becoming more independent instead of being the burden of the family." "But a great need remains for a family structure, "says Nina, who still lives with her parents, "because people have to be able to survive emotionally." In Atlanta, 18-year-old Liss Jciner feels strongly about what’s happened to the family." People have realized that the family has disintegrated, "she says, "But today’s family—particularly the black family—is trying to pull itself together and become the strong unit as it once was. "A similar view is expressed by a senior at Brigham Young University: "A happy family means everything to me. I read a lot about how the American family is falling a part. But I see losts of strong families around me, and that makes me very optimistic." |
A:Young people of ’60s and ’70s held radical attitudes towards life. B:Young people of the early 1980s begin to turn back to traditional values. C:Young people of the early 1980s follow the "new morality". D:There were anti-establishment occurrences in ’60s and ’70s.
