For semi-professional artists, performing before the public is a good chance ____.
A. to improve themselves in their career
B. to help train amateur performers
C. to make friends with superstars
D. to get involved in profitable business
以下程序的执行结果是______。 #include<iostream.h> #include<fstream.h> #include<stdlib.h> void main() char ch; fstream file; file.open("abc. dar",ios::out|ios:: in|ios::binary): if(! file) cout<<"abc.dat文件不能打开"<<endl; abort() ; file<<"12 34 56"<<endl; file.seekg(o,ios::beg): while(!file.eof()) streampos here=file.tellg(); file.get(ch); if(ch==’ ’) cout<<here<<" "; cout<<endl:
小组(焦点)座谈法的价值在于在自由进行的小组讨论中,常常会得到一些与调查方案设计有关的意想不到的发现。( )
A. 对
B. 错