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Today is Saturday. Daming and Lingling are at home. They are making noodles for Mum and Dad. But they are very naughty. They are making lots and lots of noise(噪音). Dad is working and Mum is tidying the room. “Please, be quiet, children. Dad is working. Please go to your room.”
Now, Daming and Lingling are in their room. Daming is playing the drums. Lingling is playing her flute. Oh, no! The noise is bigger(更大声).“Children, please go and make noodles instead”Mum says.
判断正误。对的写T，错的写F。
（1） Daming and Lingling are making a cake for Mum and Dad.
（2） Daming and Lingling are very naughty.
（3） Dad is reading books.
（4） Mum is tidying the room.
（5） In their room, Daming is playing the drums. Lingling is playing her flute.
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
