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
选择填空。(16分)
Mike 每天早上坐出租车去上学,他应该这样说:________
A.I go to school by bike every day.                 
B.I go to school by bus every day.
C.I go to school by taxi every day.
(  )(2)Li Yan 想知道谁在过山车上,她应该这样问:________
A.What are on the roller coaster?                
B.Who are on the roller coaster?
C.Whose is on the roller coaster?
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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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