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假如你是李华，你的英国笔友 Henry对武术感兴趣。请你根据图表提示，用英语给他写一封电子邮件，邀请他暑期来观摩你校举办的首届武术节，感受中华武术文化。词数80左右。
 | Time | July 7 to 9, 2018 |
| Activities | Competitions, shows | |
| History of Wushu | Thousands of years | |
| Benefits（益处）of Wushu | … |
注意事项：
1.必须包含所提示的信息，可适当发挥，开头已给出，不计入总词数；
2.意思清楚，表达通顺，行文连贯，书写规范；
3.请勿在文中使用真实的姓名、校名及提示信息以外的地名。
参考词汇：practice Wushu练武
Dear Henry,
I am glad that you are interested in Wushu. __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
Li Hua
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
