(1)《种树郭橐驼传》中,郭橐驼在介绍种树经验时说到,为了保持树木的天性,种树人要做到“
(2)庄子在《逍遥游》写到:“朝菌不知晦朔,蟪蛄不知春秋。”用朝菌和蟪蛄这类昆虫来感慨生命短暂与渺小,苏轼在《赤壁赋》中也有类似的慨叹“
(3)古之君子敬小慎微,重视“小”处,如司马迁《屈原列传》“
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