A.一只画眉站在一根小枝上兴奋地叫着,那歌声真好听。 |
B.月亮款款地悄没声儿地溜进来,出现在窗前的穿衣镜上了。 |
C.榕树茂盛的枝干向四面伸展开来,树叶密不透风,像一把撑开的大伞。 |
D.月亮还在竹帘儿上爬,那满圆儿却慢慢儿又亏了。 |
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