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Lisa's weekend was so great. She worked as a guide at the nature museum. There was a butterfly (蝴蝶) house with over 200 kinds of butterflies in it. How interesting! She told the visitors about their living habits (生活习惯). But she was a little tired because she stayed up late to watch the football game last night.
1．Lisa had a great weekend.2．There were over 2000 kinds of butterflies in the butterfly house.
3．Lisa worked as a visitor at the museum.
4．Lisa stayed up late last night so she was a little tired.
5．Lisa told the visitors about the bees' living habits.
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
