征税是海关为保证顺利完成监管和征税等任务而采取的保障措施。 ( )
参考答案:错
Mrs. White managed to settle the quarrel between Lei and Rain without hurting the feelings of______. [ ]
A. either
B. none
C. neither
D. all
有如下程序: #include<iostream.h> long fib(int n) if(n>2)return(fib(n-1)+fib(n-2));else return(2); void main() cout<<fib(3); 该程序的输出结果是
A.2
B.4
C.6
D.8