月经后期虚寒证的经血特点是（）
A.色红，质黏稠
B.色淡，质黏
C.色淡暗，质清稀
D.色淡红，质清稀
E.色暗红，有血块
参考答案：D
设有下定义的语句：inta[3][2]={10,20,30,40,50,60};intb[3][2]={10,20,30,40,50,60}; 则a[1][1]*b[2][1)的结果为( )。
A．2000
B．1200
C．2400
D．3000
Most of us know we should cut down on fat, but knowing such things isn't much help when it ________ shopping and eating. [ ]
A. refers to
B. speaks of
C. focuses on
D. comes to
