①学习需要扎扎实实,坚持不懈,久久为功,正如荀子《劝学》中鼓励的那样:“
②自古文人多傲骨, 李白在《梦游天姥吟留别》中,用“
③苏轼在《赤壁赋》中以“
④古诗文中的景物描写常常能以片言传神,用极精炼的语言描摹出景物的典型特征。比如:陶渊明在《归园田居》(其一)中以“
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