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Jenny and Wang Hong are good friends. They are classmates. Jenny likes dancing. She can dance on Tuesday and Friday. Wang Hong likes playing the erhu. She often plays the erhu on Saturday. Jenny's father is a businessman. He works in Beijing. Her mother is a doctor. She works in a hospital. Wang Hong's father is a businessman. too. Her mother is an art teacher. She works in a school. Jenny and Wang Hong often play together (一起).
1．Jenny can dance on Thursday and Friday.2．Wang Hong can play the erhu on Saturday.
3．Jenny's mother is a doctor.
4．Wang Hong's mother works in a hospital.
5．Jenny and Wang Hong are classmates.
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
