A.假如(jiǎ) 真假(jià) 寒假(jiǎ) 假期(jià) |
B.转身(zhuǎn) 转动(zhuǎn) 旋转(zhuàn) 自转(zhuàn) |
C.湖泊(pō) 停泊(bó) 水泊(pō) 泊船(bó) |
D.几乎(jī) 几个(jǐ) 茶几(jǐ) 几天(jī) |
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