学进去-教育应平等而普惠
试题
类型:匹配题
难度系数:0.65
所属科目:小学英语
看图,与相应的对话用“——”连起来。
1.                           a.  A:Nice to meet you! B:Nice to meet you, too!
2.                           b. A:Goodbye.See you later!  B:Bye!
3.                             c. A:Where is my book?  B:It’s under the desk.
4.                              d. A:How do you feel? B: I’m very cold.
5.                           e. A: What are they doing? B:They are playing.
6.                             f. A:May I have two books? B:Thanks.      
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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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