unit check 2 - multiple choice-2 根据录音里的对话与问题，选出正确的答案/module/audioplay.html?objectid=09ac62572cb18a85a641e755e7cdb6c6

question3 A: choice a B: choice b C: choice c D: choice d

自愿选择 A: autonomous choice B: automatic choice C: autobiotic choice D: automobile choice

请写出与以下else-if语句等价的switch语句。 if(choice == 1) price = 3.0; else if(choice == 2) price = 2.5; else if(choice == 3) price = 4.0; else if(choice == 4) price = 3.5; else{ price = 0.0; } switch { case 1: price=3.0; break; case 2: price=2.5; break; case 3:price=4.0;break; case 4: price=3.5;break; price=0.0; break; }

the law will help families make the ______ choice and the ______ choice

What is the author’s choice? Why does he make such a choice?

设变量已正确定义,选项()与以下程序段不等价。switch(choice){case1:price=3.0;case2:price=2.5;default:price=0.0;}A.price=0.0;B.switch(choice){default:price=0.0;case2:price=2.5;case1:price=3.0;}C.price=0.0;switch(choice){case1:price=3.0;case2:price=2.5;}D.if(choice==1){price=3.0;price=2.5;price=0.0;}elseif(choice==2){price=2.5;price=0.0;}else{price=0.0;}

The choice is among __________, __________ or __________.

choice answer

single choice