问题
选择题
This is _____ orange and that is _____ rose.[ ]
A. a; a
B. an; an
C. a; an
D. an; a
答案
答案：D
搜题请搜索小程序“爱下问搜题”
This is _____ orange and that is _____ rose.[ ]
A. a; a
B. an; an
C. a; an
D. an; a
答案：D
碳,让世博更精彩”。已胜利闭幕的上
海世博园成为一个全球范围内的绿色环保、低碳科技和产品大展台和实验室。回答14～15题。