①闪闪的 ②小小的 ③蓝蓝的 ④弯弯的
________月儿 ________船 ________天 ________星星
①尖尖 ②圆圆 ③弯弯 ④顽皮
荷叶________ 草芽________ 雪人________ 谷穗________
A.② ;④;③;①;②;①;④;③ |
B.④;②;① ;③;②;①;④;③ |
C.④;②;③;①;②;①;③;④ |
D.④;②;③;①;②;①;④;③ |
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