选择题：A、巴黎

Why do some people choose self-catering accommodation? __________A.To experience a warmer family atmosphere B.To enrich their knowledge of English C.To entertain friends as they like D.To enjoy much more freedom

通过模拟自然,用分散的小规模控制措施在源头上来管理雨水,通过渗透、过滤、储存、蒸发和滞留等方法来模仿开发前的水文特征,实现多重目的,这是()的理念。

第50题答案是__________A.what B.whenC. how C.why

英国、法国、德国合流制的比例为()。

The writer thinks that for a student to have a part-time job is probably___________.A.a waste of time that could have been spent on study B.useful for his future work C.a good way to earn extra money D.a good way to find out his weak points