Given：12.NumberFormatnf=NumberFormat.getInstance（）；13.nf.setMaximumFractionDigits（4）；14.nf.setMinimumFractionDigits（2）；15.Stringa=nf.format（3.1415926）；16.Stringb=nf.format（2）；WhichtwostatementsaretrueabouttheresultifthedefaultlocaleisLocale.US？（）A.Thevalueofbis2.00.B.Thevalueofais3.141.C.Thevalueofais3.14.D.Thevalueofbis2.0000.E.Thevalueofais3.1415.F.Thevalueofais3.1416.G.Thevalueofbis2.
Given：12.NumberFormatnf=NumberFormat.getInstance（）；13.nf.setMaximumFractionDigits（4）；14.nf.setMinimumFractionDigits（2）；15.Stringa=nf.format（3.1415926）；16.Stringb=nf.format（2）；WhichtwostatementsaretrueabouttheresultifthedefaultlocaleisLocale.US？（）
A.Thevalueofbis2.00.
B.Thevalueofais3.141.
C.Thevalueofais3.14.
D.Thevalueofbis2.0000.
E.Thevalueofais3.1415.
F.Thevalueofais3.1416.
G.Thevalueofbis2.
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