按要求画出一个图形：所画图形中同时要有正方形和圆，并且这个图形既是轴对称图形又是中心对称图形，将图形画在下面的空白处______．
有以下程序main(){union{char ch[2]；int d；}S；S.d=0x4321；printf("％x,％x＼n",S.ch[0],S.ch[1])；} 在16位编译系统上,程序执行后的输出结果是【 】。
A．21,43
B．43,21
C．43
D．21,00
A project manager recently rewarded an individual with a promotion that carried with it a very small salary increase but substantially more responsibility．The project manager appears to be appealing to the employee's （） need.
A．monetary
B．physiological
C．esteem
D．self-actualization
