小壁虎爬呀爬,爬到房檐下。他看见燕子摆着尾巴,在空中飞来飞去。小壁虎说:“燕子阿姨,您把尾巴借给我行吗??”燕子说:“不行啊,我要用尾巴掌握方向呢。”
1.从“爬呀爬”可以看出小壁虎( )(多选)A.爬了很远 | B.爬得很慢 | C.爬得很快 |
3.燕子要用尾巴
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