a double-dip recession是什么意思

a double-dip recession是什么意思 什么是DIP DIP 是 DOUBLE IN-LINE PACKAGE 的缩写 a slight dip的精确翻译 #includeusing namespace std;#define PI 314159double area(double radius=0);double area(double a,double b);double area(double a,double b,double h);double area(double a,double b,double c,int);int main(){cout to double dip on sth是什么意思啊?He double dips on the special edition DVD of Pearl Harbor.这句又是什么意思呢?谢谢了!高手们! 有句C语言看不懂double f (double a, double b, double c,double d, double x) double *p,a; *p In one class a student painted with her feet dip into ink,改错题 为什么dip 改为dipped the first leg was a long （原句见下）So it would be very unusual,given the pent-up demand that the recession and weak recovery has created,to have a double-dip recession when the first leg was a long one. DIP是什么意思? dip是什么意思 dip是什么 DIP.SDM. operator=是什么意思啊# include double sum(double a,double b);double subtract(double a,double b);double divide(double a,double b);double multiply(double a,double b);main(){int choice;char operator;double a,b;double (*func)();printf( * * * * * double double double double