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When talking about the Chinese food going abroad, you can’t forget luosifen. To make it, people should 1． rice noodles with sour bamboo shoots （竹笋）, dried tofu skin, fresh 2． and peanuts in river snail soup. The special taste mostly comes from the sour bamboo shoots.
In the 1970s, luosifen was 3． a street snack in Liuzhou. People outside of the city knew little about it. It became an intangible cultural heritage （非物质文化遗产） of Guangxi in 2008. Now luosifen has become more and more 4． across China. And even people 5． other countries like America, Australia, Germany and so on can also enjoy the food.
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
