(1)李白在《行路难》一诗中表现他对人生前途乐观豪迈气概的两句是:“
(2)《蜀相》中以乐景写哀情,感叹碧草娇莺无人赏玩,显出英雄长逝,遗迹荒落,流露出对诸葛亮的深沉悲痛的两句诗是:“
(3)《过秦论》中贾谊指出秦的过失即灭亡的原因在于:“
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