气 温 | A.15℃ B.21℃ C. 15℃—21℃ |
降水量 | A小雨 B中雨 C大雨 |
风 速 | A.0级 B.1级 C.2级 |
风 向 | A.东风 B.西风 C.北风 |
云 量 | |
出行提示 | A.带折扇 B.带雨伞 C.带遮阳伞 |
穿衣指数 | A.短衣短裤 B.防寒服 C.长袖外套 |
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