A.燕子(yàn zi) 然后(rán hòu) 瓢虫(piāo chóng) |
B.吐出(tǔ chū) 掉下(diào xià) 逃命(táo mìng) |
C.大象(dà xiàng) 拦住(lán zhù) 壁虎(bì hǔ) |
D.咬断(yǎo duàn) 拨水(bō shuǐ) 赶走(gǎn zǒu) |
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