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单选题
System.out.format（”Pi is approximately %d.”， Math.PI）； What is the result？（）
A
Compilation fails.
B
Pi is approximately 3.
C
Pi is approximately 3.141593.
D
An exception is thrown at runtime.
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单选题System.out.format（”Pi is approximately %d.”， Math.PI）； What is the result？（）A
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