Almost a quarter of today's teens check Facebook more than 10 times a day, according to a 2009 survey by Common Sense media, a nonprofit group that monitors media's impact on families.
监测媒体对家庭影响的非营利组织“常识媒体”2009年的一项调查显示,今天的青少年中,接近四分之一的人每天查阅Facebook超过10次。
Its survey, which monitors early warning signs of company distress, showed that 149, 543 businesses experienced "significant" financial problems between July and September, down 14% from a year ago.
该机构监测英国公司经营恶化的预警迹象的调查报告显示,在七月至九月期间,有149543家企业出现“重大的”财务困难,比去年同期减少了14%。
Global survey mission seasonally and dynamically monitors the changes of earth surface with earth observation satellite, it is an application of remote sensing technology in monitoring global change.
全球普查任务利用地球观测卫星季节性地动态监测地球表面变化,是遥感技术在全球变化监测中一种应用。
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