【单选题】
A def read(): f=open("test.txt","r") while True: s=f.read() if s!="": print(s) else: break f.close()
B def read(): f=open("test.txt","r") while True: s=f.readline() if s!="": print(s) else: break f.close()
C def read(): f=open("test.txt","r") st=f.readlines() for s in st: print(s) f.close()
D def read(): f=open("test.txt","r") s=f.readline() st=s.splist(" ") for s in st: print(s) f.close()
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