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| <发现 朋友圈 | |
 | 3分钟前 |
| I’m in Canada now. It’s cloudy and cool today. I visit my grandparents. They live on a farm. There are lots of animals and vegetables there. I like horses and sheep. I have carrots and green beans for lunch. They’re fresh and delicious. | |
| <发现 朋友圈 | |
 | 15分钟前 |
| I go shopping with my mum today. There are lots of dresses. I like black, so my mum buys a black dress for me. It’s very pretty but it’s too expensive. I like it very much. | |
1．What’s the weather like in Canada today? ( )
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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
