Yuri created a formula for a button. The code is supposed to set the value of an existing field called title. He used the following formula: title:= @propercase (title); after the foumula runs ,the title field is null. Why? ()
A. the value of one field cannot be set from the value in another field
B. the text string in the formula is set to null. Thus notes cannot validate the formula
C. when setting the value of a field , the formula must be in the field‟s input validation event
D. the formula does not specify that title is an existing field. Thus it is interpreted as a temporary variable&e
古希腊智者学派在社会道德方面强调每个人都有自己的价值判断标准,不必强求一律;而苏格拉底却认为“美德即知识”。这从根本上反映了()
A. 人们关注的对象从自然界转向人类
B. 希腊城邦民主制度从繁荣走向衰落
C. 古希腊雅典城邦社会道德世风日下
D. 人们对人的研究转向法律和宗教