若引回的反馈信号与输入信号比较使净输入信号（），则称这种反馈为负反馈

安全套用过之后，为了节省，可以洗干净，下一次再用（）A.正确B．错误

未知题型安全套用过之后，为了节省，可以洗干净，下一次再用（）

It is the stage when students read through their writin...

单项选择题It is the stage when students read through their writings and check the clarity of ideas or the logical development of their arguments. Also, students check carefully the grammar, spelling and punctuation of their writings. ---- Choose the one that best suits the description above.( )
A、Listening for the gist
B、Predicting
C、Editing
D、Resource-provider

与发怒病人沟通技巧（）A.倾听B．接受C．理解D．帮助E．呵护

单项选择题与发怒病人沟通技巧（）