A.阳光明媚(mèi) 念念叨叨(dāo) 落井下石(lào) |
B.一声不吭(hánɡ) 永无休止(yǒnɡ) 孤独惆怅(chóu chànɡ) |
C.焦急兴奋(jiāo) 掩面叹息(yǎn) 跟着旋转(xuán zhuǎn) |
D.渐渐空虚(kònɡ) 轻轻悄悄(qiāo) 天色昏暗(hūn) |
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