按照反映的内容分类，财务报表可分为（ ）
A．静态报表
B．个别报表
C．动态报表
D．合并报表
E．对外报表
参考答案：A,C
By the time Einstein was 14 years old, he ________ himself advanced mathematics.
A．has taught
B．taught
C．had taught
D．was teaching
