Dalong is my friend. His grandfather is sixty years old, and he looks healthy. Why?
Dalong’s grandfather eats healthy food every day. In the morning he has soup and eggs for breakfast. For lunch and dinner, he has rice and vegetables. He never has sweets. And he doesn’t have lots of meat. He thinks it’s not good for health. He always has some fruit after meal. Dalong’s grandfather does exercise every morning. He always swims and runs in the afternoon. Sometimes he plays table tennis with Dalong.
Dalong ’s grandfather says , “I always feel young, because I have healthy food and do exercise every day.”
1.Dalong’s grandfather is ________ years old. ( )A.40 | B.50 | C.60 |
A.has healthy food | B.does exercise | C.A and B |
A.rice | B.sweets | C.vegetables |
A.runs | B.plays table tennis | C.has some fruit |
A.have lots of meat | B.do exercise | C.have a healthy breakfast |
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