知信行模式的内容包括信息、知识和学习、信念和态度、行为改进和（）
A.学习知识
B.调整信念
C.端正态度
D.调节情绪
E.增进健康
参考答案：E
什么是环保意识？
The millions of calculations, had they been done by hand,______all practical value by the time they were finisheD．
A．could lose
B．would have lost
C．might lose
D．ought to have lost
