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Today is Sunday. It is a fine day today. The sun is shining. The sky is blue. Mr. Smith and his family are walking in the park. There are four people in his family. Mr. Smith and his wife are looking at the boats on the lake. Tom is looking at the bird in the sky. Mary is not looking at the boats in the lake. She is looking at a big ship. They have a good time.
1．Today is Saturday.2．Today is a fine day.
3．There are three people in Mr. Smith's family.
4．Mary is looking at the boats on the lake.
5．Mr Smith and Mrs. Smith are in the boats.
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
