A.祖父戴一顶大草帽,我戴一顶小草帽:祖父栽花,我就栽花;祖父拔草,我就拔草。 |
B.母亲深情地说:“莺儿,那儿才是我们的祖国啊!” |
C.那一次次的分离,岸英不都平平安安回到自己的身边来吗?这次怎么会…… |
D.四十秒钟:大家已经觉得时间太长了。 |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2