以下所列的各函数首部中，正确的是______。

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void play(Var:Integer,var b:Intege void play(int a, void play(int a,int Sub play(a as integer,b as intege

int fun(double X,int *n)； int fun(double ,int)； int fun(double * X,int n)； int fun(double *int*)；

int fun(double x, int *; int fun(double, in; int fun(double *x, int ; iht fun(double*,int*);

先卸首部油舱，后卸尾部油舱，再卸中部油舱先卸尾部油舱，后卸首部油舱，各舱均衡卸载先卸首部油舱，后卸尾部油舱，各舱均衡卸载先卸中部油舱，后卸首部油舱，各舱均衡卸载

void play(var：Integer，var b：Intege void play(int a， void play(int a,int Sub play(a as integer，b as intege

void play(var a：Integer,var b：Integer) void play(int a,b) void play(int a,intb) Sub play(a as integer,b as integer)

void ply (var a：Integer var b：Integer) void play (int a，b) roid play (inta，int b) sub play (a as integer，bas integer)

int fun(double x，int *； int fun(double ，in； int fun(double *x，int ； int fun(double *，int *)；

void play(Var:Integer,var b:Integer) void play(int a,b) void play(int a,intb) Sub play(a as integer,b as integer)

先卸首部油舱，后卸尾部油舱，再卸中部油舱先卸尾部油舱，后卸首部油舱，然后各舱均衡卸载先卸首部油舱，后卸尾部油舱，然后各舱均衡卸载先卸中部油舱，后卸首部油舱，然后各舱均衡卸载

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则正确的fun函数的首部是 ( )A) void fun(double &

void play(var：Integer，var b：Integer) void play(int a，b) void play(int a,int b) Sub play(a as integer，b as integer)

void play (var：Integer，var b：Integer) void play(int a，b) void play(int a，int b) Sub play(a as integer，b as integer)

int fun(double x, int *n); int fun(double, int); int fun(double *x, int n); int fun(double *, int*);

int fun(double X,int *n)； int fun(double ,int)； int fun(double * X,int n)； int fun(double *int*)；

void play(var a：In．teger，var b：Integer) void play(int a，b) void play(int a，int b) Sub play (a as integer，b as integer)

int fun(double x, int *; int fun(double, in; int fun(double *x, int ; int fun(double*, int*);

int fun(doublex,int*n); int fun(double ,int), int fun(double *x,int n); int fun(double*, int*);

double fun( double a[15]) double fun( double *a) double fun( double a[]) double fun( double a)