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Today is Children's Day. Children are at table. They are having dinner. Colin likes Chinese food. But he can't use the chopsticks well. Chen Jie teaches him. Alice wants to have some soup. Su Nan passes her the spoon. Lucy wants to cut the beef. Where is the knife? It's on the table. Here are the chopsticks. Let's eat some noodles. They are delicious.
1．Today is Teachers' Day.2．Lucy wants to cut the beef.
3．Alice wants to have some soup.
4．Colin can use the chopsticks well.
5．Noodles are delicious.
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
