①东一片,西一片,隔着山头不见面。(_____)
②上边毛,下边毛,中间夹着个黑葡萄。(_____)
③红门楼儿,白门坎儿,里边有个嘻嘻孩儿。(_____)
④白娃娃,住高楼,看不见,摸不着,想一想,都知道。(_____)
⑤“耳、眼、口、脑”交朋友,猜一个字。(_____)
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