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76. The scourge of HIV/AIDS currently engulfing the world will quitelikely be brought under control within the next few years thanks to theuntiring efforts of scientists and researchers worldwide. 现在席卷世界的艾滋病的祸害很有可能由于全世界科学家和研究人员的不懈努力在未来几年内得到控制。 77. The incidence rate of cancer mainly stems from several factors,including inappropriate diets, poor healthcare practices and the lack of earlydetection. Continuing medical advances and rising awareness do, however , offerpromising hope for the future . 癌症的发病率主要由以下诸多因素引起，包括不适当的饮食、不好的保健习惯以及没有及早发现。然而，医学的不断进步和对此不断增强的关注给未来带来了很大的希望。 78. Increased urban pollution levels and the mounting death tollfrom motor vehicles accidents can mainly be attributed to the glut ofautomobiles appearing on city roads in recent years. Detrimental factors willquite likely outweigh the benefits of rising automobile usage. 城市人口的增长和车祸中死亡率的增加主要是由于近年内充斥城市道路的汽车。汽车使用量的增加带来的有害因素很有可能超过它的好处。 79. The rising divorce rate in China can, at least in part, beattributed to spousal incompatibility, disparities in education levels,changing social attitudes and the increasing upward mobility of the youngergeneration. | 
