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I have a new friend. Her name is Linda. She's ten years old. She is in Class Three, Grade Four. She has a big family. Her father is 35 years old, and her mother is 33 years old. She also has a brother. He is seven years old. Her family is full of (充满) love.
1．How old is Linda? ( )| A．She's ten. | B．She's nine. | C．She's twelve. |
| A．Grade 5. | B．Class 4, Grade 3. | C．Class 3, Grade 4. |
| A．Six. | B．Three. | C．Four. |
| A．3 | B．2 | C．5 |
| A．Class 7. | B．Class 2, Grade 1. | C．Sorry, we don't know. |
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
