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Dear Jenny,
How are you? My name is Mary. I’m from Canada. I’m a primary school student. I’m inClass One, Grade Five. There are four people in my family. They are my father, my mother, my sister and I. My father works in a hospital. He’s a doctor. My mother works in a bank. My sister is only nine. I love my family. Welcome to Canada.
Yours,Mary
1．Mary is from Canada. （____）
2．Mary's father is a teacher. （____）
3．Jenny's mother works in a bank. （____）
4．Mary's brother is only nine. （____）
5．Mary loves her 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
