Overhead bridges are found in many parts of Singapore, especially in places where traffic is heavy and crossing the road is dang

admin2009-05-28  48

问题    Overhead bridges are found in many parts of Singapore, especially in places where traffic is heavy and crossing the road is dangerous.
   The purpose of these bridges is to enable people to cross roads safely. Overhead bridges are used in very much the

选项 A、they don’t hold up traffic and they are safer
B、people can have a better view of the city
C、they are more convenient to use
D、they can save a lot of time and space

答案A

解析
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