Teacher: Hello, boys and girls. Are you helpful at home?
Student: Sure!
Teacher: Who can cook the meals?
Zhang Jie: I can cook the meals.
Wang Dong: Me too.
Teacher: Who can do the dishes?
Liu Yang and Wang Yue: I can do the dishes.
Teacher: What can you do, Jin Yue?
Jin Yue: I can empty the trash, sweep the floor and water the flowers.
Teacher: Great! You’re helpful at home.
( ) 1. Zhang Jie can cook the meals.
( ) 2. Wang Dong can cook the meals, too.
( ) 3. Wang Yue can not do the dishes.
( ) 4. Jin Yue can water the flowers.
( ) 5. The students are helpful at home.
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