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Today① (is /was) a fun day.I② (walk/walked) to mike’s home in the morning. I ③ (study / studied) English with him. We ④ (read / readed ) funny tongue twisters together.
Then I ⑤ (went /go) to a park ⑥ (by / buy) bike. I ⑦ (flew / fly)kites, It ⑧ (was / are) a windy day . Suddenly my kite flew into the lake.
A dog ⑨ (saw / see)the kite. He ⑩ (jump / jumped ) into the lake and swam to it . Fire minutes latter, he returned the kite me .I was very grateful to him
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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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