证券市场的发展经历了以下哪几个阶段( )。
A.萌芽阶段、初步发展阶段
B.停滞阶段
C.恢复阶段
D.加速发展阶段
参考答案:A,B,C,D
Ancient Greeks were responsible for many of the _______ in science and other fields.
A.advances
B.progress
C.development
D.civilization
乳牙何时出齐()
A.1.5岁
B.2岁
C.2.5岁
D.3岁
E.3.5岁