搜索
| | sweep the floor | cook the meals | sing English songs | do kung fu | draw cartoons |
| Amy | √ | √ | | √ | |
| Chen Jie | | | √ | | |
| John | √ | | | | √ |
| Zhang Peng | | | | √ | √ |
| Sarah | | √ | √ | | |
1. What can Chen Jie do at home?
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2. What can Zhang Peng do at home?
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3. What can Amy do at home?
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4. What can John do at home?
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5.What can Sarah do at home?
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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
