【简答题】Now, more and more cities are facing problems, such as high housing costs, pollution and crime. Let’s see what people in Hyderabad, India and in Sao Paulo, Brazil do to solve (解决) the problems. Hydera...
【单选题】A The undersea world is very beautiful. Now more and more people want to dive in the water to find the secrets there. Scuba diving is a new sport today. It can take you into a wonder-ful undersea worl...
A.
they want to catch fish
B.
they want to find the secrets of the undersea world
C.
the sea is deep D, there are all kinds of plants in the sea