学进去-教育应平等而普惠
试题
类型:选择题
难度系数:0.64
所属科目:小学英语
问答句匹配。
A. It's in October.
B. Yes, it was.
C. The students.
D. Yes, it is.
E. I’d like a CD walk-man.
F. She still at home.
G. It's the 20th of May.
H. He’s in the study.
I. They’re in the vase.
J. They’re nice pictures.
[[QOrDeR]]Where’s John? (_____
【小题2】Where are the flowers? (_____
【小题3】When’s your birthday? (_____
【小题4】What would you like as a birthday present? (_____
【小题5】Was it there a moment ago? (_____
【小题6】Who are very happy today? (_____
【小题7】How is your mother? (_____
【小题8】Is it in your bag? (_____
【小题9】What are they? (_____
【小题10】What’s the date today? (_____
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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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