A、0 B、2 C、3 D、.T.
A.所有關(guān)系運(yùn)算符的優(yōu)先級都相等 B.邏輯運(yùn)算符的優(yōu)先級高于關(guān)系運(yùn)算符 C.字符串運(yùn)算符"+"和"-"優(yōu)先級相等 D.算術(shù)運(yùn)算符的優(yōu)先級高于其它類型運(yùn)算符
A.clear B.release all C.clear memo D.clear all