控制流程由有限循环的若干环节组成,其中处于投入与反馈之间的环节是( )。
A.转换
B.输出
C.对比
D.纠正
参考答案:A
使用磁卡进行的身份认证属于______。
A.口令机制
B.数字签名
C.个人特征
D.个人持证
— But for your timely warning, we ____ into great trouble.
— You know we're friends. [ ]
A. would get
B. must have got
C. would have got
D. couldn't have got