选手 | 评委1 | 评委2 | 评委3 | 评委4 | 评委5 | 评委6 | 评委7 |
丫丫 | 92 | 95 | 93 | 94 | 95 | 96 | 93 |
贝贝 | 99 | 97 | 94 | 98 | 95 | 94 | 96 |
奇奇 | 95 | 91 | 94 | 95 | 93 | 92 | 90 |
(2)选谁参加全国赛比较合适?为什么?

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

