My little sister is Helen. She has got long hair. Her eyes are big and black. She has got three dolls. Their names are Mimi, Nini, Titi. Mimi is pink. It has yellow hair. Nini is green. It has a nice dress. Titi is brown. It has a big T-shirt. Helen likes Nini best.
(1). Helen is my little sister.
(2). Mimi has long hair.
(3). Helen has big brown eyes.
(4). Nini has a brown dress.
(5). Titi has a big T-shirt.
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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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