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20℃
30℃
7℃
15℃
5℃1．—What’s the weather like in Beijing?
—It’s cool and rainy. You’d better take your umbrella.
2．—What’s the weather like in New York?
—It’s warm.
3．—What’s the weather like in London?
—It’s cold. You’d better wear your coat.
4．—How is the weather in Sydney?
—It’s hot. You’d better take your sunglasses.
5．—How is the weather in Toronto?
—It’s cold. You’d better wear your boots.
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
