【判断题】生物质气是由各种有机物在隔绝空气的条件下发酵,并在微生物的作用下产生的可燃气体。
【单选题】The preschool children who watch TV programs with violent scenes are more likely to have sleep problems than those who watched programs for the age.
【单选题】每天的天气只有晴s,多云c,雨r三种,昨天是s今天是多云的几率为p(c/s)=0.2,p(s/s)=0.6,p(c/c)=0.4,p(s/c)=0.4p(r/r)=0.6,p(c/r)=0.2,求该信源极限熵。
【简答题】以下代码执行,num1的值为 ,num2的值为 。 int num1,num2; num1=5; num2=num1; num2+=3;
【多选题】以下属于财产转让所得的项目有 ( ) (知识点:财产转让所得的对象确定)
【单选题】Children who like violent video games are more likely to show violent behavior. This must be because they are copying the games.(单选)