“诚者何?不自欺、不妄之谓也”对“诚”的正确理解是()
A.不自己欺骗自己
B.不做不该做的事情
C.不自己欺骗自己,不做不该做的事情
D.讲信誉
参考答案:C
Is David William the owner of a website ______ he encourages people to protect the environment?[ ]
A. that
B. which
C. where
D. who
简述投机因素对国际商品市场价格的影响。