1.下列词语与“推敲”意思相近的是(多选)( )
A.琢磨 | B.斟酌 | C.推开 | D.思考 |
A.杞人忧天 | B.狐假虎威 | C.盲人摸象 | D.杯弓蛇影 |
②人不应该为不必要的或缺乏根据的忧虑和担心而烦扰,而要胸怀大志、心境开阔,对事物有正确的认识。(______)
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