(1)①长出前腿 ②尾巴变短 ③尾巴不见了 ④长出后腿
小蝌蚪生长的顺序是:
(2)①打谷 ②施肥 ③播种 ④耕田
种粮食的顺序是:
(3)①把大象赶上岸,装石头上船 ②称石头重量 ③在船舷上做记号 ④赶象上船
曹冲称象的顺序是:
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