语句result+= i;还可以写成下列哪种形式？ A: esult=+i； B: esult = i+i; C: esult =i+i++； D: esult =result+ i;

esult = 0 for i in range(5): result += i print(result) 输出结果为( )

如果下面try代码块没有发生异常，则控制台的输出为： A: y{ B: wFile("D:/f1.txt").createNewFile(); C: leInputStreamis=newFileInputStream("D:/f1.txt"); D: stem.out.println("result:"+(is.read()>384)); E: .close(); F: catch(Exceptione){} G: esult:true H: esult:false I: esult:false和result:true两种结果都有可能 J: 以上结果都不正确。

The main costs of space exploration ______ the fact that we are set on sending humans, rather than robots. A: esult in B: arise from C: owe to D: ecause of

Production points inside the production possibilities frontie A: are unattainable. B: are attainable only with the full utilization of all resources. C: are associated with unused or misallocated resources. D: esult in more rapid growth.

如果下面try代码块没有发生异常,则控制台的输出为: A: y{ B: wFile("D:/f1.txt").createNewFile(); C: leInputStreamis=newFileInputStream("D:/f1.txt"); D: stem.out.println("result:"+(is.read()>384)); E: .close(); F: catch(Exceptione){} G: esult:true