表达式left（"How are you"，3）的值是（）

[单选题]表达式Left("how are you",3)的值是A．howB．areC．youD．how are you

[单选题]表达式Left("abcde",3)+Right("abcde",2)的值是( )A．abcB．deC．abcdeD．出错

[单选题]设“A="87654321"”，则表达式Val(Left(A,4)+Mid(A,4,2))的值为( )。A．876543B．876554C．8D．6

[单选题]（14）设A="87654321",则表达式Val(Left(A,4)+Mid(A,4,2))的值为 A.876543 B.876554 C.8 D.6

[单选题]设A="12345678"，则表达式Val(Left(A，4)+Mid(A，4，2))的值为( )。A．123456B．123445C．8D．6

[单选题]设A="12345678"，则表达式Val(Left(A,4)+Mid(A,4,2))的值为______。A．123456B．123445C．8D．6

[单选题]设A="12345678"，则表达式Val(Left(A，4)+Mid(A，4，2))的值为 ______。A．123456B．123445C．8D．6

[单选题]表达式Mid("SHANGHAI"，6，3)的值是( )。A．SHANGHB．SHAC．ANGHD．HAI

[单选题]表达式Mid（"ShangHai"，6，3）的值是（）A . ShangB . HaiC . SHaD . angH

[单选题]表达式1+2+"aa"+3的值为A．12aa3B．3aa3C．12aaD．aa3