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1.罗布泊(______)现在是黄沙一片,谁能想到它曾经是一个美丽的大湖呢?
2.台风就要来了,船只都整整齐齐地停泊(______)在岸边。
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3.石猴端坐上面道:“列位呵(______),‘人而无信,不知其可。’……”
4.奶奶见人总是笑呵(______)呵的,给人一种亲切、平易近人的感觉。
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