猜你喜欢
- 1已知函数fx＝sin（x＋π/6）＋sin(x-π/6)＋acosx＋b(a,b∈R,且均为常数)
- 2what did you say at the meeting?改为被动语态
- 3已知二次函数f(x)满足F(X+2)=F(X-2),为什么对称轴是x=2
- 4a²(x-y)+4b²(y-x)怎么因式分解?谢谢
- 55a的M+1次方与3A的2M-1B1/2(N+3)是同类项M N分别是?
- 6了解“四大发明”,认识中国古代科技发明对世界文明发展的贡献
- 7there's nothing to tell.
- 8what will our parents do next有什么语法
- 9they rode on confidently
- 10根据蜻蜓发明了飞机的过程