Brian Fung explains:
Here's how it works: the National People's Congress brings together some 2,000 delegates. Those representatives are responsible for choosing between 200 and 300 members of what's called the Central Committee of the Communist Party. Out of those, 24 ascend to the ultra-powerful Politburo, which in the past has been responsible for many of China's major decisions. But it doesn't end there. Above the politburo sits the country's highest decision-making body, the Politburo Standing Committee (PSC). It's effectively a seven-member inner cabinet staffed by China's most powerful individuals, who themselves are drawn from the 24-member politburo.