搜索
Helen has a pet dog. He is lovely but he has some bad habits. He likes eating sweet food and so he is very fat and he can’t run fast. He doesn’t like rice but he only likes small bones (骨头). He doesn’t like brushing his teeth and two of his teeth are bad now. He likes to play with balls and sometimes he plays with a ball on the road. One day a car nearly hit him. He doesn’t like to go to bed early and sometimes he gets up very late. So when (当) it is a warm day, he can feel sleepy in the sun.
1．Helen’s pet dog is2．The dog can’t run very fast
3．
4．The dog likes playing on the road, so it is not
5．Helen’s dog goes to bed
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
