学进去-教育应平等而普惠
试题
类型:句图匹配
难度系数:0.40
所属科目:小学英语
看图,选择正确的对话。
A. —Nice to meet you. —Nice to meet you, too.
B. —Is it a bus? —No, it’s a bike.
C. —What’s your name? —My name is Ben.
D. —Please clean your nose. —OK.
E. —Who’s this pretty girl? —She is my sister.
F. —Where is your ball? —My ball is under the chair.
G. —What’s this? —It’s a picture of a family.
H. —May I use your pencil? —OK. Here you are.
I. —Touch your feet, please. —OK.
J. —Who’s he? —He’s my grandpa.
1. (       )
2.(       )
3.(       )
4.   (       )
5.(       )
6.(       )
7.   (       )
8. (       )
9.(       )
10. (       )
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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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