My sister has two sons. One is 4 years old and the other is 6 years old. One day I go to
See my sister. Her husband isn’t at home. It’s time for lunch and we sit at the table waiting for
The dishes. Now the mother is in the kitchen. I hear a talk between the brothers. The 6-year-
Old boy says,“ Dad is not at home. I am the head of our family today. And I can sit on Dad’s
chair.” But the 4-year-old boy says,“ No. Sit on Mom’s chair if you are the head of our family
today.”
( ) 1. My sister has two boys.
( ) 2. The father is at home.
( ) 3. The 6-year-old son wants to sit on his father’s chair.
( ) 4. I’m in the kitchen.
( ) 5. The mother is the head of the family.
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