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Ben: She brushes her teeth twice a day.
Judy: How often does she wash her face?
Ben: She washes her face three times a day. She combs her hair three times a day, too.
Judy: How often does Debbie sweep the floor?
Ben: She sweeps the floor everyday. She washes the dishes five times a week and she often hangs up the clothes for her mom.
Judy: She has good habits.
Ben: Yes, she does.
1．Debbie brushes her teeth once a day.
2．Debbie washes her face and combs her hair three times a day.
3．Debbie never sweeps the floor.
4．Debbie washes the dishes every day.
5．Debbie has good habits.
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
