判断伤势较重的依据有：()

未分类题传染病都有病原体,可以是微生物或寄生虫。常见的病原体有：()

未分类题Prof. Frank Flynns study has found thatA．employees are wary of generosity in the workplace.B．there are more takers than givers among the engineers.C．takers are the most productive among the employees.D．generosity seems to be an obstacle to productivity.

单项选择题根据地下水对建筑材料腐蚀评价标准，其腐蚀等级可分为()个等级。

未分类题The phrase 'have it together'(Line 4, Para. 4)most probably meansA．suffer from a lack of mental clarity.B．make wise decisions and treat staff fairly.C．command a grand vision of the company.D．are physically and mentally well-organized.

未分类题The underlined word 'that' in paragraph 5 refers toA．firing employees.B．pleasing investors.C．suffering burnout.D．mood swings.