“洞”用部首查字典法先查(_____),再查(____),用音序查字典法先查(____),再查(_____),在字典中的意思有:①窟窿,深穴,孔:洞穴。②洞。洞箫。空洞。漏洞。洞府。洞天。 ③打洞,打成洞(穿透):一狼洞其中。 ④透彻地,清楚地:洞悉。洞穿。⑤说数字时用来代替零
“洞察”是(____)
洞可以组词(_____)(______)(______)
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