既能活血，又能凉血的药物是
A．大黄
B．赤芍
C．丹皮
D．紫草
E．茜草
参考答案：A,B,C,D,E
Have you heard Mary was robbed during her trip to Egypt? Not only _________ her money, but she was nearly killed.
A．she lost
B．had she lost
C．she had lost
D．did she lose
推导圆面积公式时把圆转化成了长方形。[ ]
