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| Dear Cathy, Do you like Easter eggs? Come and make them with us on March 2nd. Call me at 18322642589. Kate |
| Dear Mum, This card is for you. Thank you, my dear mum! I love you so much! Cathy |
1．The first card is written by Cathy for her mum. （
2．You can make Easter eggs on March 1st. （
3．If you want to make Easter eggs, please call Kate at 18322642589. （
4．Cathy loves her mum very much. （
5．Cathy gets the third card when her birthday is coming. （
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
