“穷”读音( );按音序查字法,应先查大写字母( );按部首查字法,应先查( )部,再查( )画。字典里“穷”字的解释有:①缺乏财物。②完了。③达到极点。④环境恶劣没有出路。“穷凶极恶”中的“穷”应选第( )项解释。“贫穷”中的“穷”应选第( )项解释,“理屈词穷”中的“穷”应选第( )项解释。
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