正确答案: B

口径一致原则

题目：建设方案经济比选的原则包括（ ）。

解析：B

查看原题查看所有试题

学习资料的答案和解析：

[单选题]35．

have a rest

解析：35．C have a look看一看；have a try试一试．have a rest休息；have a picture照相。根据语境“没有一栋房子甚至也没有一棵树可以让他们休息一下”可知应选C。

[单选题]26．

each

解析：26.C【解析】因为我们三人一起过生日，故排除both （两者）;另外B和D项与题意不符。

[单选题]BHip-hop dancing(街舞) is popular with many young people today． They like it because they can invent their own moves． They use this dance to show their love for life． It also shows that they feel good about life，that they just want to be themselves and enjoy life，and that they are not afraid of problems．

they can invent their own moves

解析：26.C【解析】文章的第二句话告诉我们：街舞之所以深受年轻人的欢迎，是因为他们可以加入自己的动作。

[单选题]30． Mr Henry didn’t exchange seats because

he hadn’t known he had been able to do so

解析：30．C【解析】A项是文章的最后一句，表面上好像是对的，但是，这位父亲是因为以前没有坐过车，不知道可以和他人换座位，不知道可以在空座位上坐，这才是真正的原因。