学进去-教育应平等而普惠
试题
类型:选择题
难度系数:0.94
所属科目:小学英语
主谓宾的肯定(有动词三单式)
(1)She ______ in the hospital. She is a ______.
A. works; nurse    B. work; doctor    C. works; farmer
(2)Tom’s uncle___ a new house.
A.have          B.has     C.there is     
A.is
(3)Liu Tao’s mother      at home every day.
A.teachs   B.is teach  C.teaches
(4)They all     (work) in the factory.
(5)The man in blue      (teach) us English.
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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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