Green roof is an ecologically sound strategy of spreading green in urban areas.A．RightB．Wr

Green Roof Inns正准备发行债券，拟定的利率是6%，半年付一次息，面值1000美元。该债券期限10年，

The roof of our house is broken, so it needs _______.A.repairedB.repairingC.being repai

German people prefer extensive green roof systems to intensive ones.A．RightB．WrongC．Not me

Small plants like grasses and herbs are grown widely on intensive green roofs.A．RightB．Wro

One of the benefits of green roofs is the reduction of the heat island effect in cities.A．

One focus in the green roof research is the evaluation of suitable plant species.A．RightB．