(1)《悯农》的作者是____代诗人________,我会补充诗句:春种一粒粟,____________。____________,农夫犹饿死。这首诗反映了农民辛苦劳作却换不来丰衣足食的生活,告诉我们粮食来之不易,要节约粮食。
(2)太阳中午的时候在________,地上的树影正指着________;北极星永远高挂在________;沟渠里的积雪化得快的那边是________,化得慢的那边是________。
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