听力原文: The poverty line is the lowest income that people need for an acceptable standard of living. People with incomes below the poverty line are considered poor. Economists study the causes of poverty in order to find solutions to the problem.
As the general standard of living in the country rises, the poverty line does, too. Therefore, even with today's relatively high standard of living; about 10 percent of the people in the United States are below the poverty line. However, if these people had stable jobs, they could have an acceptable standard of living. Economists suggest several reasons why poor people do not have jobs.
For one thing, more than half of the poor people in the United States are not qualified to work. Over 40 percent of the poor people axe children. By law, children less than 16 years old cannot work in many industries. A large number of poor people are old. Many companies do not hire people over 65 years old, the normal retirement age.
Some poor adults do not look for jobs for a variety of personal reasons: they are sick, they do not have any motivation, they have family problems, or they do not believe they can find a job.
Other poor people look for a job but cannot find one. Many poor adults never went to high school. Therefore, when they look for jobs, they have few skills they can offer.
Some economists are looking for better solutions to the poverty problem. However, at the present time, many people depend on welfare for a living.
(33)
A.To define what the poverty line is.
B.To explain why some people live the poverty line.
C.To find solutions to the problem of poverty.
D.To show sympathy for those poor people.
第2题
关于吸入性肺脓肿,下列哪一项是不正确的
A.多属厌氧菌为主的混合感染
B.好发于右上叶后段和右或左下叶背段
C.空洞内壁凹凸不平,为偏中心的空洞
D.病后10天咳大量脓痰,且常有恶臭味
E.有效抗生素治疗,不应少于8周
第3题
关于吸入性肺脓肿,下列哪一项不正确
A.多属厌氧菌为主的混合感染,痰一般细菌培养不易生长
B.好发于右上叶后段和右或左下叶的背段
C.X线片可见空洞,其内壁凹凸不平,为偏心性的空洞
D.咳出大量脓痰,且常有恶臭
第4题
下列哪一项关于吸入性肺脓肿的描述是不正确的
A、多属厌氧菌为主的混合感染
B、仰卧位时好发于肺上叶后段和下叶背段,坐位时好发于下叶基底段
C、急性起病,表现畏寒高热,全身中毒症状,病后10~14天咳大量脓痰,且常有恶臭味
D、空洞内壁凹凸不平,为偏心性空洞
E、有效抗生素治疗,不应少于8周
第5题
有关烧伤吸入性损伤的定义哪一项是正确的
A.吸入性损伤仅限于呼吸道
B.吸入性损伤是烟雾造成的呼吸道及肺实质的损伤
C.吸入性损伤是热力和/或烟雾引起的呼吸道及肺实质的损伤
D.吸入性损伤是热力造成的呼吸道及肺实质的损伤
E.吸入性损伤是烟雾引起的肺实质的损伤
第6题
有关烧伤吸入性损伤的定义哪一项是正确的
A、吸入性损伤仅限于呼吸道
B、吸入性损伤是热力造成的呼吸道以及肺实质的损伤
C、吸入性损伤是烟雾造成的呼吸道以及肺实质的损伤
D、吸入性损伤是烟雾引起的肺实质的损伤
E、吸入性损伤是热力和(或)烟雾引起的呼吸道及肺实质的损伤
第7题
有关烧伤吸入性损伤的定义哪一项是正确的()
A、吸入性损伤仅限于呼吸道
B、吸入性损伤是热力造成的呼吸道以及肺实质的损伤
C、吸入性损伤是烟雾造成的呼吸道以及肺实质的损伤
D、吸入性损伤是烟雾引起的肺实质的损伤
E、吸入性损伤是热力和(或)烟雾引起的呼吸道以及肺实质的损伤,并可吸收中毒
第8题
发病部位与支气管解剖和体位有关的疾病是
A.卡氏肺囊虫肺炎
B.源性肺脓肿
C.继发性肺脓肿
D.吸入性肺脓肿
E.慢性肺脓肿
第9题
有关吸入性肺脓肿发病机制的描述不正确的是
A.病原体经口、鼻、咽腔吸入致病菌
B.病原体多为厌氧菌
C.吸入物易进入右肺
D.仰卧位时易进入左肺
E.脓肿常为单发
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