Now many of my classmates like to surf the Internet in their free time.I think Internet can bring us both advantages and disadvantages.For example,if I have some trouble studying,I can surf the internet to find more helpful information.And I can make more friends on it.Some of my classmates say they feel happy when they talk with more friends with many similar hobbies.However,Internet can make some problems at the same time.If you spend too much time on it ,you will becaome lazy and can't put your heart on study.It will be even worse if you feel you can't live without Internet.So we must be careful when we use the Internet.
最新问答: 大学的英文怎么读记 你——令人叹服的大自然这句话中破折号的作用 某原子的质子数为26,中子数比质子数多4,则该原子中粒子总数为______. Come on ,there's only _____ time left.a.few b.a few c.little 已知角a的终边上一点P的坐标为(2m,-4m)求sina.cosa及tana 已知双曲线x2/a2-y2/b2=1过切点(2a,√3b),求过该切点的切线和法线方程 已知a、b是关于x的方程x^2-(3k+1)x+2k(k+1)=0的两个实数根,若x1+3x2=8,求k的值 ''why i am so alone? He often helps people on his work?这句话哪有错 y''+4y=0的通解 导函数的应用已知函数f(x)=x-ln(x+a)(a是常数)求函数的最小值 有点不懂.若f(x)为R上的奇函数,且在(0,+∞)内是增函数,又f(-3)=0,则(x-1)f(x)<0的解集为 为什 配制100ml 0.1mol·L-1Nacl溶液 he doesn't have an idea of his own.he just parrots what othe 一箱苹果,九个九个的数,多七个,12个12个的数多10个.这箱苹果最少有几个? (送友人)的''挥手自兹去,萧萧班马鸣''表达了怎样的感情? 照样孑,在括号里填上适当的词。一(股)清泉一( )花辦 一( )歌声 一( )水塔 一( )果园 在△ABC中,已知sinA:sinB:sinC=6:5:4,则cosA=______. (2008•宣武区一模)如图所示,花岗岩石块甲、乙体积之比为13:2,将它们分别挂在轻质硬棒AB的两端,当把石块甲浸没在 人体的血液占体重的十三分之一,血液里三分之二是水,爸爸的体重是78千克,他的血液大约含水多少千克?