A .[112]>="90"
B .[张先生]>=[李先生]
C .{90/09/09}-8<{90/90/01}
D .[女]$性别
[单选题]在下列表达式中,结果值肯定为真(.T.)的是( )。A.”112”>”85”B.[考试]<[水平]C.{99-03 21}>{99-03-12}D.男引哇别
[单选题]下列选项结果为真(.T.)的表达式是( )。A.NA$"NAVECO"B.NAVECO$"NA"C.NAN$"NAVECO"D.NAVECO$"NAN"
[单选题]在下列表达式中,其值为真(.T.)的是( )。A.“Book”$” This is a Book”B.“This”$” The Book”C.”line”$” This is the Line”D.”the” this is a cat”
[单选题]下列表达式中,表达式返回结果为T的是( )。A.AT(''at'',''at&t'')B.''[信息]''$''管理信息系统''C.EMPTY(nu
[单选题]逻辑常量A=.T.、B=.T.、C=.T.,下面各表达式中返回逻辑真的是()A . NOT((NOTAORB.ANDC.B . NOT(NOT(AORB.ANDC.C . NOT(AANDBORNOTC.D . NOT(NOTAORBANDC.
[单选题]以下四组表达式中,结果是逻辑值.T.的是______。A.'this'$'this is a string'B.'this'$'THIS IS A STRING'C.'this is a string'$'this'D.'this'>'this is a string'
[单选题]以下4组表达式中结果是逻辑值.T.的是_________。A.'this'$'this is a string'B.'this'$'THIS IS A STRING'C.'this is a string'S'this'D.'this'>'this is a string'
[单选题]以下4组表达式中结果是逻辑值.T.的是______。A.'this'$'this is a string'B.'this'$'THIS IS A STRING'C.'this is a string'$'this'D.'this'>'this is a string'
[单选题]在下列表达式中,结果为工的是______。A.[男]$性别B.{90/09/0/9}-7<{90/90/01)C.[张小姐]>=[李小姐]D.[112]>=111
[单选题]在下列表达式中,结果为字符型的是______。A.125-"90"B.abc+"def"="abedef"C.CTOD("99/10/01")D.DTOC(DATE()>"96/08/01"