更羸说:“它飞得慢,叫的声音很悲惨。飞得慢,是因为_______________;叫得悲惨,是因为________________。它一听到弦响,心里很害怕,就___________。它一使劲,伤口又裂开了,就_________________。
第一步:根据大雁_______________的现象分析,推断出它肯定__________
第二步:根据大雁的____________情况分析,推断出它肯定__________________
第三步:根据大雁的________________分析,推断出它肯定__________,结果是_____________
这一段话主要讲了______________________
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