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Hello, friends! I'm Mary. I'm a girl. I'm from America. There are four people in my family. Look! They are my parents, my brother and me. I have many friends in China. These are Lily and Mike. Lily has long hair and big eyes. She has a ruler. Where is her ruler? Look! It's under the book. These are Sarah and Tom. Tom has many storybooks. Look! Here they are. Today is Sarah's birthday. We have lunch together.
1．______ is Mary's family. ( )A． | B． |
| A．four | B．five |
A． | B． |
| A．in | B．under |
| A．Sarah | B．Tom |
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
