⑴his, he, friends, sometimes, teaches, English (.)
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⑵time,it’s, say, to,goodbye, friends,to,my (.)
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⑶library, two, I, hours, spent, in, the (.)
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⑷my,an,is, family, this,old, of,photo (.)
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⑸means, the, not, grass, walk, should, you, it, on (.)
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⑹for, fridge, and, the, the, fish, in, the, are, milk, me (.)
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⑺pair, there, VCDs, to, some, the, of, are, next, earphones (.)
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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

