Chapter 649 is the most difficult challenge

"It's over!"

In the house rented by Chen Yu.

Wan Jiaqi looked at the questions on the computer screen, and she also felt her hands and feet feel cold for a moment.

This topic was completely beyond his expectation.

He and Li Chang had made a lot of preparations for this competition during this period and prepared several aspects of information in advance, but neither of them thought about it at all.

They had not prepared any of these three questions.

And all three questions are very unfamiliar to him!

Li Chang's face also looked heavy, but compared to Wan Jiaqi, his expression was relatively calm.

Chen Yu couldn't help but be stunned for a moment.

I have to say that these three questions are really good.

It was really beyond his expectation.

Fortunately, it is not despair for him. He knows a little bit about these three topics. Except for the first topic, which is about chip design, Chen Yu has the other two top