(1)这种设计既减轻了流水对桥身的冲击力,又减轻了桥身的重量,节省了石料。(用加点的词造句)
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(2)小虾互相追逐。(扩句)
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(3)五点左右,艳丽的蔷薇绽开了笑脸。(仿写拟人句)
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(4)小狗那耳朵总会认真地竖起来两只三角形的,倾听着外面的动静。(改病句)
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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