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Given a class Repetition: Which code should be inserted at line 1 of Demo.java to compile and run Demo to print "pizzapizza"?（）
A:import utils.*;
B:static import utils.*;
C:import utils.Repetition.*;
D:static import utils.Repetition.*;
E:import utils.Repetition.twice();
F:import static utils.Repetition.twice;
G:static import utils.Repetition.twice;

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出自：Oracle认证

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