[[QOrDeR]]《小公鸡和小鸭子》中,小鸭子急得直哭是因为他捉不到虫子。(
【小题2】树和喜鹊后来很高兴,是因为他们都有了邻居,不再孤单了。(
【小题3】《怎么都快乐》中,作者认为只有许多人玩才快乐。(
【小题4】全家人都喜欢兰兰的这张画,是因为这张画画得很漂亮。(
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