学进去-教育应平等而普惠
试题
类型:选内容补全对话
难度系数:0.64
所属科目:小学英语
补全对话:
① What's your name? ________
② Nice to meet you again. ________
③ How are you?________
④ Where are you from? ________
⑤ Good morning boys and girls.________
a. My name is Amy.
b. Fine, thank you.
c. Nice to meet you, too.
d. Good morning, Mr. Black e. I'm from the USA
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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

用户名称
2019-09-19

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

用户名称
2019-09-19
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