以下哪项不是高钙血症的症状（）
A.肌力升高
B.心律失常
C.多尿多饮
D.便秘
E.恶心、呕吐
参考答案：A
属性数据输入计算机的方法和非GIS的信息系统没有差异，一般是( )。
A．扫描输入
B．语音输入
C．键盘输入
D．汉字手写输入
A milliner bought a lot of hats, of which were brown. The milliner sold of the hats including of the brown hats. What fraction of the unsold hats were brown ？（）
A.A
B.B
C.C
D.D
E.E
of which were brown. The milliner sold 
of the hats including 
of the brown hats. What fraction of the unsold hats were brown ？（）