How did the song improve upon the tang version of the civil service system?

they mandated that most officials came from the military.
they made the examinations easier to pass.
they opened up the system to more people. t
hey required students to earn their degrees in three years.

if you could provide the poem below, i'd be happy to you!

explanation:

you didn't give us the poem, or the title of the poem. but it is essential for you to give us that, otherwise we can not detect when the poem has a tonal shift!

the  wilmot proviso  was designed to eliminate  slavery  within the  landacquired as a result of the mexican war (1846-48). fearing the addition of a pro-slave territory, pennsylvania congressman david  wilmot proposedhis amendment to the bill.