猜你喜欢
- 1yesterday some ( 介词) my old friends came to see me this kind of sound sounds the singing of the b
- 2Who was it _____ came to my office this afternoon?
- 3一道想问问别人的数学题:
- 4用函数单调性的定义证明:f(x)=a^x+a^(-x)在(0,正无穷)上是增函数(这里a>0且a不等于1)
- 5叶绿素的形成需要光,你能设计实验证明吗?
- 6head,the,the,green,shaking,his,in,boy,is,sweater咋写连词成句?
- 7快,我明天要交作业.
- 8八上科学题:【求解】把100g10℃的硝酸钾饱和溶液加热到60℃,如不蒸发水分,还需加入多少克硝酸钾晶体,
- 9例方程:小红买了1本练习本和2枝铅笔,小兰买了5枝同样的铅笔.两人用去的钱一样多.
- 10y=sinx+cosx+tanx+cotx+secx+cscx求y值域