学进去-教育应平等而普惠
试题
类型:填空题
难度系数:0.85
所属科目:小学英语
名词变复数
1. box _________             2. bus ________       3. watch __________
4. brush _________            5. orange ________    6. page _________
7. hero_________              8. kilo ________      9. tomato _________ 
10. hippo(河马) __________  11. baby _______        12. family ________
13. key ________             14. boy _______         15. zoo _______ 
16. radio ________          17. leaf _______            18. knife _________ 
19. man ______             20. woman _________        21. sheep ________ 
22. tooth _______          23. foot _______            24. mouse _______
25. ox (公牛)________      26. child _________        27. Chinese ________ 
28. Japanese ________      29. postcard_______       30. hobby________
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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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