学进去-教育应平等而普惠
试题
类型:连线题
难度系数:0.65
所属科目:小学英语
情景反应。把问句与答句连线。
1. Excuse me.Where is the zoo?                       
A.It’s sunny.
2. What’s the weather like?
B.It’s in front of the school.
3. What are you doing?
C.They’re playing clapping games.
4. What are they doing?
D.I am flying a kite.
5. Is he doing his homework?
E.Yes, he is.
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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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