系统性风险是指由于政治、经济及社会环境的变动而影响证券市场上所有证券的风险。
参考答案：对
治疗慢惊风阴虚风动证，应首选（）
A.大定风珠
B.十全大补汤
C.缓肝理脾汤
D.固真汤
E.逐寒荡惊汤
Only ________ as a translator ________ how important it is to understand foreign cultures.
A．when did I work; I realized
B．when I worked; I realized
C．when did I work; did I realize
D．when I worked; did I realize
