下列活血化瘀药中哪一味药具有雌激素样作用( )
A.延胡索
B.银杏叶
C.丹参
D.川芎
E.红花
参考答案:E
解析: 红花能够兴奋子宫,有明显的雌激素样作用。
Tom, Jack and Rose were named as assistant professors. Believe it or not, ______ three of them were of ______ age.
A.不填; an
B.不填; the
C. the; an
D. the; the
电桥电池电压不足时,将影响电桥的()。
A、灵敏度
B、安全
C、准确度
D、读数时间