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学进去-教育应平等而普惠
试题
类型:选词/短语填空
难度系数:0.85
所属科目:小学英语
看图,选出适当的短语,完成对话。
an elephant   our friends   swim fast   draw pictures   his name
1.—Can you swim?
—Yes, I can________ ________ .
2.—What can you do?
—I can________ ________ .
3.—Who are they?
— They are________ ________ .
4.—What can he do?
—He can write________ ________ .
5.—Can you draw a mouse?
—No, but I can draw________ ________ .
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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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