学进去-教育应平等而普惠
试题
类型:听音,选择听到的内容
难度系数:0.65
所属科目:小学英语
听录音,选出你所听到的单词或短语。(听两遍)
(      )1. A. this                  B. Maths                 C. that
(      )2. A. English             B. PE                      C. Music
(      )3. A. schoolbag            B. book                 C. timetable
(      )4. A. park                  B. playground          C. library
(      )5. A. make a wish        B. make a cake          C. make a kite
(      )6. A. this Monday        B. this morning          C. this afternoon
(      )7. A. all like this          B. all like red             C. all like Art
(      )8. A. what animals        B. what colours             C. what subjects
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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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