学进去-教育应平等而普惠
试题
类型:句型转换
难度系数:0.85
所属科目:小学英语
句型转换:
1.It's cool and windy today.(变成一般疑问句并作否定回答)
2.We “go to school” by bike in summer.(对带引号部分提问)
3.sister,doesn't ,my,like, summer .(连词成句)
4.do,you,what ,in,do,winter?(连词成句)
5.today, sunny, hot ,it's, and,(连词成句)
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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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