学进去-教育应平等而普惠
试题
类型:阅读选择
难度系数:0.65
所属科目:小学英语
阅读短文,选择答案。
Hello! I’m Petty. This is my day. It’s six forty. It’s time to get up. It’s seven o’clock. It’s time to go to school. It’s eleven thirty. It’s time for lunch. It’s four twenty. It’s time to go home. It’s eight thirty. It’s time to go to bed.
1. 2. 3.  4.   5.
(_____)         (_____)       (_____)      (_____)          (____)
A.B.C.D.E.
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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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