搜索
( )（1） A. My name is Jack. B. Her name is Nancy. C. His name is David.
( )（2） A. Yes, she is . B. Yes, he is. C. Yes, it is.
( )（3） A. It’s an apple. B. They’re orange. C. They’re pears.
( )（4） A. It’s in the tree. B. It’s on the tree. C. It’s a cat.
( )（5） A. I’m a girl. B. I’m a nurse. C. I’m hungry.
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
