秦皮含量测定中用薄层光密度法测定 ( )
A．秦皮甲素
B．秦皮乙素
C．七叶树素
D．丁香苷
E．甘露醇
参考答案：A
解析：[知识点] 皮类中药——秦皮
期货从业人员在执业过程中应当坚持期货市场的（）原则，维护期货交易各方的合法权益。
A.公开
B.公平
C.公正
D.公允
In modern times, people have to learn to ______ all kinds of pressure although they are leading a comfortable life.
A．keep with
B．stay with
C．meet with
D．live with
