学进去-教育应平等而普惠
试题
类型:填空题
难度系数:0.65
所属科目:小学英语
用所给的动词的适当形式填空。
1. He _____ (visit) the Great Wall last year.
2. We________ (have) a good time yesterday.
3. We often _______ (go) to school by bus last year.
4. I ________ (live) in the village when I was a child.
5. Mike______ (see) a big tiger in the nature park last year.
6. Sam_____ (do) the housework yesterday.
7. ______ (do) you _______(enjoy) yourself yesterday?
8. ______ (do)you _________(play) the violin in the art room yesterday?
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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

用户名称
2019-09-19

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

用户名称
2019-09-19
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