学进去-教育应平等而普惠
试题
类型:听力题
难度系数:0.65
所属科目:小学英语
听录音,选出所听问句的恰当答语。
____)1.A.No, I don’t. 
B.No, I do. 
C.No, you can’t.
____)2.A.Yes, she is.
B.No, she is. 
C.No, he isn’t.
____)3.A.I can go there by bike. 
B.She can go there by bus . 
C.He can go there by metro.
____)4.A.He should take some medicine. 
B.You should have a rest. 
C.No, I don’t.
____)5.A.She has a headache. 
B.I have a fever. 
C.He has a bad cold.
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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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