The verification code of the second construction results query can't come out.

What you want to ask is what is the reason why the verification code of the second construction achievement query can't come out? The reasons are network problems and browser compatibility problems.

1. Network problem: The verification code needs to be loaded from the server, and the network connection is unstable or the server does not respond in time, resulting in the failure to display the verification code.

2. Browser compatibility problem: Some verification codes use specific technologies or plug-ins, and the browser used does not support or install related plug-ins, which leads to the failure to display verification codes.