1_____education is the instruction that occurs when the instructor and students are separated by distance or time,or both

若是f(x)=(x2-)/(x-1）（√x2+1)）无穷小,则的变化趋势是___。

If a boy or a girl has grown up in a home with sharing tasks and decisions，he or she will probably______.

已知“a=10,r=6,x=7,b=True”，表达式“a＞=2*3.14159*r And x＜＞5 Or Not b”的值为______。

函数f（x）＝In（4＋3x－x2）的单调递减区间是____．

Duty is an act or a course of action that people __________you to take by social customs, law or religion.

Duty is an act or a course of action that people ______you to take by social customs, law or religion.

Project ______is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

设f（x）＝sinx，f[φ（x）]＝1－x2，则φ（x）＝____，φ（x）的定义域为____。

设f(x)=sinx，f[φ(x)]=1-x2，则φ(x)=____，φ(x)的定义域为____.

It will be a relief over the death of a friend or a relative if the friend or relative dies from ______.

设f（x）是可导函数，且f′（x）＝sin2[sin（x＋1）]，f（0）＝4，f（x）的反函数是x＝φ（y），则φ′（4）＝____。