1. father 2. two 3. fourteen 4. pen 5. ruler 6. mother 7. pencil 8. grandpa 9. nine 10. eraser 11. sister 12. eleven 13. kangaroo 14. four 15. hamburger 16. fish 17. five 18. goose 19. ice-cream 20. thirteen 21. hot dog 22. ant 23. twenty 24. ten 25. lion |
1.动物:
2.食物:
3.数字:
4.文具:
5.家庭成员:
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