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Mary read a book about space travel yesterday. It says an American spaceship took a man into space in 1969. The man’s name is Armstrong. He was the first person who walked on the moon. Russia sent the first animal into space in 1957. That was a dog. Its name was Laika. China sent a man into space in 2003. His name is Yang Liwei. The book is interesting and Mary loves it.
[[QOrDeR]]Aemstrong was the first people who walked on the moon. （【小题2】Russia sent a cat into space. （
【小题3】Yang Liwei was the first taikonaut in the world. （
【小题4】Mary likes the book. （
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
