搜索
Mr. Liu is an English teacher. He works in Shanghai. In July he wants to go on a trip to Chengde with his wife and daughter. Shanghai is far from Chengde. It is about 1, 400 kilometres from Chengde to Shanghai. They leave for Chengde in the morning on July seventh and arrive in it in the evening on July eighth. They are going to stay in Chengde for seven days. Because it is very cool in Chengde in July but it is hot in Shanghai.
1．Mr. Liu works in Chengde. （
2．Three people in Mr. Liu's family are going to Chengde. （
3．It is about 800 kilometres from Shanghai to Chengde. （
4．They are going to stay in Chengde for six days. （
5．It is very cool in Chengde in July. （
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
