学进去-教育应平等而普惠
试题
类型:完形填空
难度系数:0.65
所属科目:小学英语
选择正确的选项补全对话。
Lily: Mike, look______the red schoolbag.
Mike: Oh, it’s wonderful!
Lily: Yes, but it’s______small. I______got many books.
Mike: She wants a big one.
Assistant: What about the blue one? It’s______.
Lily: Great! I______ it very much.
1.
A.upB.onC.at
2.
A.tooB.toC.two
3.
A.hasB.haveC.had
4.
A.bigB.smallC.light
5.
A.buyB.takeC.like
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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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