简述人力资源的激励中非经济性激励方法有哪些？
参考答案：
非经济性奖励有：1、工作挑战性的提高；2、工作环境的改善；3、弹性工作时间。
The Education Department says that school safety has set off alarm bells with frequent reports of serious
accidents ________ students got injured or killed.[ ]
A. after which
B. in which
C. by which
D. for which
血浆胶体渗透压降低可引起的变化有（）
A.血容量增多
B.有效滤过压增高
C.细胞内液减少
D.组织液容量增多
E.进入毛细血管的水分减少
