纳税人跨省临时从事生产经营活动的,不再开具《外出经营活动税收管理证明》,改向其机构所在地税务机关填报《跨区域涉税事项报告表》。()
Whichfragmentisanexampleofinappropriateuseofassertions?()
A. assert(!(map.contains(x)));map.add(x);
B. if(x>0){}else{assert(x==0);}
C. publicvoidaMethod(intx){assert(x>0);}
D. assert(invariantCondition());returnretval;
E. switch(x){case1:break;case2:creak;default:assert(x==0);
20.publicfloatgetSalary(Employeee){21.assertvalidEmployee(e);22.floatsal=lookupSalary(e);23.assert(sal>0);24.returnsal;25.}26.privateintgetAge(Employeee){27.assertvalidEmployee(e);28.intage=lookupAge(e);29.assert(age>0);30.returnage;31.}Whichlineisaviolationofappropriateuseoftheassertionmechanism?()
A. line21
B. line23
C. line27
D. line29
classA{protectedintmethod1(inta,intb){return0;}}WhichtwoarevalidinaclassthatextendsclassA?()
A. publicintmethod1(inta,intb){return0;}
B. privateintmethod1(inta,intb){return0;}
C. privateintmethod1(inta,longb){return0;}
D. publicshortmethod1(inta,intb){return0:}
E. staticprotectedintmethod1(inta,intb){return0;}