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【单选题】
For the inherited attribute Y.y of production A → XY, the possible correct semantic rule is ().
A.
A.a≔f(X.x,Y.y)
B.
Y.y≔f(a,Y.y)
C.
Y.y≔f(X.x)
D.
A.a≔f(Y.y)
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参考答案：
参考解析：
刷刷题刷刷变学霸
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A.
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【单选题】In the definition of L-attributed, if the production A→X_1, X_2,⋯,X_n, each semantic rule of N calculates the inherited attribute of X_j (1≤j≤n), then it depends on ① Inherited attribute of a ② Synthe...
A.
①③
B.
②④
C.
①④
D.
②③
【单选题】Which of the following statements about the definition of L-attributed is correct ()
A.
S-attributed definition belongs to l-attributed definition
B.
The syntax-directed definition of variable type declaration is not an l-attributed definition
C.
L-attributed definition contains only synthesized attributes
D.
L-attributed definition contains only inherited attributes