1.____________________________,北风吹雁雪纷纷。_______________________ ,天下谁人不识君。
2.《送元二使安西》的作者_______代诗人__________。诗的前两句诗是 ___________________ ,___________________。这两句点明了送客的______________ 和 ____________ 。
3.《可爱的中国》一文中“朋友”指的是_____________________ __ _____ ___。
4 吾腰千钱告诉我们 ______________________________________________________。

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

