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Zhao Shan is a girl from Shandong. She’s six years old. Zhao Kang is her brother.He’s four years old. Zhao Shan and Zhao Kang are hungry now (现在). They would like some noodles for dinner. Zhao Shan can use chopsticks. Zhao Kang can’t use chopsticks. He can use a spoon.
1．Zhao Shan is 4 years old.2．Zhao Kang is Zhao Shan’s brother.
3．Zhao Shan and Zhao Kang would like some noodles for dinner.
4．Zhao Shan can’t use chopsticks.
5．Zhao Kang can use a spoon.
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
