1。[（1/3）²-（1/3）（1/4）][（1/3）^{2_{+（1/3）（1/4）}}]

答案是 7/（3²4²）什么的 具体数记不住了

AA
     70.
    The following appeared in a memorandum from the president of a company that makes (旧题有修饰词Glabrous) shampoo.
   
“A widely publicized study claims that HR2, a chemical compound in our shampoo, can contribute to hair loss after prolonged use. This study, however, involved only 500 subjects. Furthermore, we have received no complaints from our customers during the past year, and some of our competitors actually use more HR2 per bottle of shampoo than we do. Therefore, we do not need to consider replacing the HR2 in our shampoo with a more expensive alternative.”

AI: 27. “A company’s long-term success is primarily dependent on the job satisfaction and the job security felt by the company’s employees.”

天什么都记不住了。。。。。。。。。。。。。我是猪头  提醒大家下午晚上场不要去太早 进不去还没地方坐 提前半个小时就好了 一定要听老师讲完所有指导 一定仔细听  还有不要觉得题越来越简单就沮丧 我就是这样子语法特别短。。。。