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;

var result1,result2; result1 = 5 + "8"; result2 = 5/8; 下面描述正确的是（选两项） A: esult1的值为13 B: esult1的值为58 C: esult2的值为1 D: esult2的值为0.625

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

for i in range(b.max_row): for j in range(b.max_column): print(b.cell(row=i,column=j).value)上面语句运行的结果是：__________。 A: 1 1 1 1 1 1 1 1 1 1 B: 1111111111 C: 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 D: 出现异常

【单选题】CDMA通信的基站,假定基站A的码片序列是+1 +1 +1 -1 -1 +1 -1 -1,基站发射bit为101时,实际发射的信号是 A. +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 –1 –1 –1 +1 +1 –1 +1 +1 B. +1 +1 +1 -1 -1 +1 -1 -1 –1 –1 –1 +1 +1 –1 +1 +1 +1 +1 +1 -1 -1 +1 -1 -1 C. +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 +1 +1 +1 -1 -1 +1 -1 -1 D. –1 –1 –1 +1 +1 –1 +1 +1 –1 –1 –1 +1 +1 –1 +1 +1 –1 –1 –1 +1 +1 –1 +1 +1

for i in range(1,11): for j in range(1,11): b.cell(row=i,column=j).value=1 #b是一个工作表对象for i in range(1,11): for j in range(1,11): print(b.cell(row=i,column=j).value,end=" ") print()上面程序代码运行的结果是（）。 A: 1 B: 1 1 1 1 1 1 1 1 1 1 C: 1111111111 D: 1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1