| {{B}}Sharks Perform a Service for
Earth’s Waters{{/B}} It is hard to get people to think of sharks as anything but a deadly enemy. They are thought to {{U}} (51) {{/U}} people frequently. Although these fish perform a valuable {{U}} (52) {{/U}} for earth’s waters and for human beings. Yet business and sport fishing are threatening their {{U}} (53) {{/U}}. As a result, some sharks are at risk of disappearing from Earth. Warm weather may influence both fish and shark {{U}} (54) {{/U}}. Many fish swim near coastal areas because of their {{U}} (55) {{/U}} waters. Experts say sharks may follow the fish into the same areas, {{U}} (56) {{/U}} people also swim. In fact,most sharks do not purposely charge at or bite humans. They are thought to mistake a person {{U}} (57) { A. produced B. contained C. used D. added [单选题]在《江苏省就业质量蓝皮书》---“江苏省地区就业状况监测与就业质量评估指标”中,( )属于劳动关系的具体指标。
A.规模以上企业劳动合同签订率 B.医疗保险参保率 C.非农业比重 D.三次产业劳动合同签订率 [单选题]第二代计算机的逻辑元件采用()。
A.电子管 B.晶体管 C.中、小规模集成电路 D.大规模或超大规模集成电路 [单项选择]《塔里木油田钻井井控实施细则》规定：含H2S地区井的营房摆放应距井口（）以远，避开低洼处，并处于季节风的上风或侧风方向。
A. 600m B. 500m C. 300m D. 200m [简答题]高压电压互感器的作用？
[单选题]提出把法制建设与道德建设、依法治国与以德治国紧密结合起来，促进物质文明与精神文明协调发展的文献是( )
A.《关于社会主义精神文明建设指导方针的决议》 B.《关于加强社会主义精神文明建设若干重要问题的决议》 C.中共十五大报告 D.《公民道德建设实施纲要》、 [多选题]具有中国特点的社会主义改造道路的内容是
A.对经济制度的改造与对人的改造相结合 B.通过一系列逐步过渡的由低级到高级的社会主义改造形式 C.和平改造特别是对资产阶级实现了和平赎买 D.社会主义工业化和社会主义改造同时并举 [简答题]71.Vacations were once the prerogative of the privileged few, even as late as the 19th century. Now they are considered the right of all, except for such unfotrunate masses as, for example, the bulk of puplation in certain countries, for whom life, save for sleep and brief periods of rest, is uniterrupted toil.
Vacations are more necessary now than before because today the average life is less well-rounded and has become increasingly compartmentalized. 72. I suppose the idea of vacations, as we conceive it, must be incomprehensible to primitive peoples. Rest of some kind has of course always been a part of the rhythm of human life, but earlier ages did not find it necessary to organize it in the way that modern man has done. Holidays and feast days were sufficient. With modern man’s increasing tensions, with the stultifying quality of so much of his work, this break in the year’s routine became steadily more necessary. 73. Vacations became mandatory for the p [单选题]截断塞门安装在（ ）上。
A.制动主管 B.制动支管 C.辅助管 D.制动软管 我来回答: 提交
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