这个选什么？

cqshicang

Connections ... so that you will reach your final destination as quickly as possible.
1。are timed
% e- o! z: d$ |  a# r. O6 _! _6 p$ P 2。will balance
3。have inter-coordinated
: G8 `5 d7 w3 O+ z' G4 o& u 4。 be well-timed