时光飞逝,正如朱自清感慨:过去的日子如轻烟,__________,如薄雾,而六年小学生活却历历在目:每当我们贪玩,对事情想当然,飘飘然时,黄老师告诫我们,“书到用时方恨少,__________”;在毕业班队会上,黄老师希望我们:青,__________这真是__________,胜读十年书。转眼,分别在即,这恰似宋代诗人王观说的“才始送春归,__________。”
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