学进去-教育应平等而普惠
试题
类型:连线题
难度系数:0.65
所属科目:小学英语
英汉词组连线
1. Mid-autumn Festival                 A. read a magazine
2. have a comic book                  B.下周
3 get together                           C. a busy weekend
4. next week                            D.中秋节
5. after lunch                            E. buy a post card
6.一个繁忙的周末                    F.有一本漫画书
7.今天傍晚                                G. take a trip
8.去旅行                                 H.聚会
9.阅读杂志                           I.this evening
10.买明信片                           J.午饭后
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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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