prerequisite notice:

　　answers are preferred in english;

　　test time is 60 minutes;

　　finish more than one question.

　　1.give an example of implementing a stack in the template way(only template

　　class declaration without detail definition and realization)

　　2.what''s the difference between string and stringbuffer?

　　3.which came the first,chicken or the egg?

　　4.in c++,there''re four types of casting operators,please enumerate and explain

　　them especially the difference.

　　5.let''s say we have a database with 1 one-column table.it contains same record

　　s. could you please give at least 1 solution to help us get records

　　between line 5 and 7. no line number,row id or index etc.

　　6.what will be the output of the following codes?

　　#include

　　#define dbl(x) x+x

　　int main()

　　{

　　int a=3;

　　int b=4;

　　int c=dbl(a)*dbl(b);

　　cout< return 0;

　　}

　　7.please write a program to realize the model described in the figure.you

　　should design your program as generic as possible so that we can enhance the m

　　odel in the future easily without making too much change in your program.

　　process1:x=a+b;

　　process2:y=c+d;

　　process3:if e>=0

　　z=e;

　　process4:if e<0

　　z=e/b;