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
从方框中选择合适的选项补全对话。
A:[[QOrDeR]]
B: I feel sad.
A:【小题2】
B: I lost my new bike. What did you do yesterday?
A:【小题3】
B: Did you feel bored?
A:【小题4】
B:【小题5】
A: Yes, I did.
A.No, I didn't.
B.I climbed the mountain.
C.How do you feel?
D.What's the matter?
 
E.Did you feel tired?
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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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