学进去-教育应平等而普惠
试题
类型:句子匹配
难度系数:0.85
所属科目:小学英语
找出相应的应答语。
A. I do exercise at the park.
B. We should do exercise every day.
C. He’s 40 years old.
D. I jog every morning.
E. He has two pieces of bread and milk.

1.How old is your father? (     )
2.What does he have for breakfast? (     )
3.What do you do every morning? (     )
4.Where do you go for your exercise? (     )
5.What do you learn from Mr. Lin? (     )
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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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