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It’s important to learn about your family’s history. You can pass it on to the next generation(一代人). Someday, you can retell your family’s stories. You will be a bridge(桥梁)from the past to the future.
Lee learned that her family moved to the US from their native land (祖国) of China. The time line shows what Lee found out about her family’s history.
1．People can’t know their families’ history.
2．Lee’s family came from China in 1830.
3．Lee’s great-grandfather was born in China.
4．Lee’s mother started to go to school in Los Angeles in 1970.
5．Lee’s family moved to Fresno in 2011.
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
