【单选题】Today I’m of my school and tomorrow I will be the of my school
【单选题】John is doing very well in school and it is quite ______ that his mother should be proud of him.
【简答题】已知函数f(x)=ax 3 +bx 2 +cx+d(a,b,c,d∈R),且函数f(x)的图象关于原点 对称,其图象在x=3处的切线方程为8x-y-18=0 (1)求f(x)的解析式; (2)是否存在区间[m,n],使得函数g(x)的定义域和值域均为[m,n],且其解析式为f(x)的解析式?若存在,求出这样一个区间[m,n];若不存在,则说明理由.
【单选题】有关体温生理性变化的错误描述是
A.
一昼夜中以清晨2~6时最低,下午2~8时最高
【单选题】Britain is proud of her great poets just as Italy is proud of her painters, and Germany ______of her composers.
【单选题】The volunteers for the Shanghai World Expo are busy from dawn ______ dust but they feel very proud of it.
【简答题】已知函数f(x)=ax 3 +bx 2 +cx+d(a,b,c,d∈R),且函数f(x)的图象关于原点对称,其图象在x=3处的切线方程为8x-y-18=0。 (1)求f(x)的解析式; (2)是否存在区间[m,n],使得函数f(x)的定义域和值域均为[m,n],且其解析式为f(x)的解析式?若存在,求出这样一个区间[m,n];若不存在,则说明理由。
【简答题】The following are all traffic signs except ____. [ ]
【单选题】My brother is very great, we are all ____ him.
【单选题】有关体温生理性变化的错误描述是
A.
一昼夜中以清晨2~6时最低,下午2~8时最高