可行性研究的具体要求主要包括( )。
A.预见性
B.公平性
C.可靠性
D.科学性
E.公正性
参考答案:A,C,D,E
As the old Chinese saying goes, only through reading thousands of books one can write ___.
A.fluently
B.correctly
C.energetically
D.professionally
现代人类错约占()
A.50%
B.35%
C.45%
D.48.9%
E.70%