【单选题】typedef struct { int month; int day; int year; }Date;
【简答题】A.working B.hot C.same D.ordinary
【单选题】某纯净物X在空气中完全燃烧,反应的方程式为:X+2O 2 点燃 . CO 2 +2H 2 O,则X的化学式为( )
【简答题】A.essential B.last C.same D.only
【简答题】A.complicated B.similar C.same D.special
【单选题】以下选项中不能正确把c1定义成结构体变量的是
A.
typedef struct { int red; int green;; int blue; }COLOR; COLOR cl;
B.
struct color cl { int red; int green; int blue; }
C.
struet color { int red; int green; int blue; }c1;
D.
struct { int red; int green; int blue; }cl;
【单选题】以下选项中不能正确把cl定义成结构体变量的是
A.
typedef struct { int red int green int blue } COLOR COLOR cl
B.
struct color cl { int red int green int blue }
C.
struct color { int red int green int blue } cl
D.
struct { int red int green int blue } cl
【简答题】A.complicated B. C.same D.different
【单选题】在X+2O 2 CO 2 +2H 2 O的反应中,根据质量守恒定律可判断出X的化学式为 [ ]
【单选题】typedef struct { int x,y;} T; typedef struct { int x,y;} *USER ; USER fun() { USER p; p=(USER)malloc(sizeof(T)); p->x=1; p->y=2; return p; } 函数fun返回值的类型是()