猜你喜欢
- 1甲乙两人,沿着500米的圆形跑道跑步,他们同时从同一地点出发,同向而行,甲每分跑280米,乙每分跑260米,
- 2六年级三个班植树,一班共植树56棵,二班植树的棵树是一班的8分之7,三班植树的棵数是二班的7分之6
- 3甲、乙两人每人都有10张纸,甲给乙_张纸可以使乙的纸张数比甲多50%.
- 4商店运来一批洗衣机,卖出24台,卖出的台数与剩下的台数的比是3:5,这批洗衣机一共有多少台?
- 5when?How?Why?I have no idea about these!
- 6By the time you have finished this book ,you_____cold.
- 7已知正切函数y=tanx的图象关于点(θ,0)对称,则sinθ=( ) A.-1或0 B.1或0 C.-1或0或1 D.1或-1
- 8If you have a job,——yourself to it and finally you will succeed.
- 9已知,x=2时,代数式ax²+bx的值为3,求(8a+4b)²-12a-6b-1的值.
- 10已知cos(x-π/4)=根号2/10,x属于(π/2,3π/4) 求.sin(2x+π/3)的值.