既能活血调经，又能凉血安神的药为
A．川芎B．桃仁C．赤芍D．红花E．丹参
参考答案：E
___________ pens are there in your pencil-box?[ ]
A. How old
B. How many
C. How much
D. How
在二期梅毒的皮疹是下列那一种
A．软下疳
B．扁平湿疣
C．尖锐湿疣
D．树胶肿
E．结节性梅毒疹
