(1)你喜欢的讲座话题(从音乐、美术、舞蹈中任选其一);
(2)选择该话题的原因及关于该话题你感兴趣的内容;
(3)希望从中有何收获。
注意:
(1)词数不少于100:
(2)可适当加入细节,使内容充实、行文连贯;
(3)开头和结尾已给出、不计入总词数。
Dear Chris,
I’m Li Jim, a student at Chenguang High School.
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Thank you for your time.
Yours,
Li Jin
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