What's the use of Ethereum MPT tree

1. What does the number of people in the Ethereum contract mean? I know the top speed.

2. At the top of Ethereum is DAPP. It exchanges with the smart contract layer through Web3. JS. All smart contracts run on EVM (Ethereum virtual machine) and use RPC calls. Below EVM and RPC are the four core contents of Ethereum, including: blockchain, consensus algorithm, mining and network layer. Except DAPP, all other parts are in the Ethereum client. The most popular Ethereum client is geth (go Ethereum)

3. Self driving can only stop at the dock. It is suggested to go to Ruian, because the tickets and time are similar from Ruian or Aojiang. It's easy to drive on Ryan's side. It's also convenient to take a bus. However, there are not many flights in a day. It seems that there is only one. There are many flights in Aojiang. All tickets have to be reserved in advance. Wenzhou can also get on board, but it takes a long time
by bus, you can take Wenzhou passenger transport center to Ruian passenger transport center, and then take No.5 bus to Nanmen wharf. Self driving direct navigation.