艰难 艰苦
(1)张骞不畏(_______)险阻,两次出使西域。
(2)建设者们无怨无悔地扎根在条件(_______)的边疆。
羞涩 羞愧
(3)这时候,鄂温克姑娘们戴着尖尖的帽子,既大方,又稍有点儿(_______),来给客人们唱民歌。
(4)这件事是他不对,人们问起来他感到(_______)难言。
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