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On N ational 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 _________ .（ ）
| A．October 1st | B．September 1st |
| A．HaiKou | B．Hainan |
| A．went swimming | B．swim |
| A．yummy | B．dirty |
| A．father | B．parents |
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
