题目内容
设二次型的秩为1，且(0，1，-1)T为二次型的矩阵A的特征向量． (Ⅰ) 求常数a，b； (Ⅱ) 求正交变换X=QY，使二次型XTAX化为标准形．
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The insurance company has a 24 ______.
It can be tempting to make a hasty decision when a killer opportunity comes along or the thought of spending another day on the job seems painful. (67) , Career coach Piotrowski recommends taking baby (68) to execute a new career strategy. "Plan a timeline of one to two years to (69) your career change. Gather information for four to six months, and then get moving on activities that will (70) into your new specialty over the next few months. Remember, you can make the (71) over time. You don’t need to do it all at (72) ." "Spend time looking (73) industry categories and a variety of jobs to get ideas about new career areas that may (74) to you. This can open your eyes to a multitude of (75) you hadn’t considered before." Informational interviews--the best-kept career-change secret, according to Piotrowski--will also help career changers come to a(n) (76) . The key is to seek people already lost in a (77) career and pick their brain with questions such as, " (78) training do I need to do well in this job, what kind of money will I (79) , and what’s a day on the job really like" Finally, people should try a few career experiments to (80) their abilities and build experience to help them move into a new career more (81) ."A career experiment can be one of thousands of activities that (82) you to learn more about a new type of work (83) you commit to choosing it." Career experiments (84) shadowing a specialist, volunteering, (85) field trips, and designing projects to (86) your knowledge and skills.
The ______ is at Salt Lane.
房屋租赁代理收费，以半个月至一个月成交租金额为标准，由双方协商一次性收取。( )
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