No.1: a limit sell order @1.2110 on Euro FX placed @8:30:19am. No.2: another limit sell order @1.2115 placed @8:30:20am the same day. Suppose the current time is @8:30:21am and the current bid price is 1.2117. Due to there are a large amount of limit sell orders to be executed, No.1 is still waiting in the queue. Does No.1 precede No.2 in the waiting queue? Or No.2 precedes No.1 because it is closer to the current bid price? Thank you in advance.