临床上，老年人患病多见虚证，其主要原因是：（）
A.地域因素
B.气候因素
C.生活环境
D.体质因素
E.精神状态
参考答案：D
I am familiar with his work and look forward to _____ of his view on literary and artistic creation.[ ]
A. informing
B. be informed
C. being informed
D. have informed
为什么说教育是现代化建设的基础设施？
