A.幼小的黑猩猩模仿成年黑猩猩,用一根蘸有水的树枝从蚁穴钓取白蚁 |
B.失去雏鸟的红雀给浮出水面的金鱼喂食 |
C.蚯蚓在迷宫中多次尝试后取食速度加快 |
D.一只大山雀偶然打开了奶瓶盖,偷喝了牛奶,不久其他大山雀也学会了偷喝牛奶 |
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