Lily has three good friends, Amy, Jane and Nancy. Amy wears a red and white dress. She likes red and white. Jane wears a blue and white sweater. She likes blue. Nancy wears a green and white skirt. She likes green.
1.Lily has _______ good friends. ( )A.two | B.three | C.four |
A.white | B.red | C.black |
A.white | B.green | C.blue |
A.Amy. | B.Jane. | C.Nancy. |
A.Lucy’s | B.Lily’s | C.Anne’s |
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同类型试题
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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
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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
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