Cho tam giác ABC. Tập hợp các điểm M thỏa mãn  A M →   +   B M →   =   2 C M →

A. Một đường thẳng

B. Một đường tròn

C. Một tia

D. Một điểm

Đọc đoạn văn trả lời câu hỏi

Hi. I’m Lily. Look at this picture. I’ll tell you about my family. There are 4 people in my family. This is my parents. My father is taller than my mother. He is a driver and my mother is a housewife. This is my sister, Linda. She is eleven years old. She is older than me. She is slim but very sporty. She like playing football. She is lovely and cheerful. The smallest girl is me. I love family.

Is her father tall?