当多种疾病表现为气虚时,都可以采取补气的治疗方法,所遵循的原则是()
A.辨证论治
B.同病异治
C.辨症而治
D.异病同治
E.辨病而治
参考答案:D
I really appreciate _____ some time to surf the Internet. But I'm too busy. [ ]
A. to have
B to having
C. have
D. having
工作分析中用于收集信息的问卷法主要可以分为一般工作分析问卷和__________.