下面()不是编程语言。
A、Visual Basic
B、Visual C++
C、Java
D、CleanPC
参考答案:C
()是指要将输出结果的信息返回给输入,以便调整和修正系统的活动。
A.输入
B.输出
C.干扰
D.反馈
Which of the following is true of world steel production a. The steel industry still has a bright prospect on a global scene. b. Steel consumption in the world registered a drastic cut. c. Steel makers are drastically cutting down their production. d. Better promotion is needed for improving sales of steel products.