and 前后动词时态必须一致
问题描述：
and 前后动词时态必须一致
and前面讲的是过去的事，后面说的现在的事情 那前后时态是否应该一致
The memoirs of President Cliton begin with his childhood in Arkansas and culminate in his rise to the presidency.
The memoirs of President Cliton began with his childhood in Arkansas and are culminated in his rise to the presidency.
请比较上面两段话，哪句更优？
答
原则上是这样的,and是连词,连接两个并列的成分,既然前面用什么时态,后面就用什么时态.