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( )1.What color is the window? A Sit down, please.
( )2.Stand up, please. B It’s a robot.
( )3.What’s this? C Good morning.
( )4.Good morning. D OK, Miss Li.
( )5.Don’t open the book. E It’s yellow.
( )6.What about a cake? F It’s nice.
( )7.Hello, Liu Tao. H Nice to meet you, too.
( )8.Nice to meet you. I Thank you.
( )9.The book is for you, Helen. J Hello, Mike.
( )10.Look at my cap. K Yes, please.
同类型试题
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
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
