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Today is Career（职业）Day. All the students are 1．about their parents’ jobs. Jiao Jie’s mother is good at 2．. She is a secretary. Her father 3．a secretary. He can not 4．quickly. He’s a postman. He 5．letters and newspapers every day. Ge Nan’s father is a police officer. He likes 6． people who are in trouble（困难）. Zhou Jia’s father works on the 7．plane. He’s a pilot. Zhou Jia8．want to be a pilot. He 9．to be a doctor. Because he likes to 10． the sick people in the hospital.
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
