搜索
There are two photos about our city. One is now, the other one is before (以前的). Look! There was a small park, but now there is a big and beautiful park. And there is a lake. There wasn’t a lake before. In our city there were some old houses, small trees. But now there are some new and high buildings (建筑物). The trees are very tall and the flowers are very beautiful. There are some supermarkets and some cars now. I love my city.
1．There was a park in our city before.2．There was a lake in the park.
3．There were some old houses and small trees.
4．There weren’t any tall trees before.
5．There were some cars in the city before.
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
