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On National Day ,we had a long holiday . It was seven days .I went to Hainan with my parents . My grandparents live in a beautiful village in Hainan . We visited them . We went to see the blue sea every day .We swam in it . We went fishing , too . My grandma cooked good food for us every day . The seafood is tasty . I like it . We took many pictures . I was excited .
(1) National Day is on October 1st .
(2) I went to Haikou on National Day .
(3) I swim in the sea .
(4) The sea food is yummy .
(5) My parents ’parents live in Hainan .
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
