The Academician's exam

Time passed by quickly.

On April 20th, Professor Lu Shenjian returned to the University of Jin Ling from a meeting in Shanghai and called Lu Zhou to his office.

When Lu Zhou walked in, the old man smiled and asked, "How's the preparation going?"

Lu Zhou replied, "Almost… Please give mercy."

Professor Lu Shenjian, "Almost? Okay then, I'll test you a few questions."

He pulled out his drawer and took out an A4 paper. He then placed the paper on the desk.

"Write on this."

Lu Zhou took a pen and when he looked at the question, his eyebrows twitched.

There were three questions on the paper.

They all looked difficult…

Professor Lu Shenjian smiled and asked, "What, you don't understand?"

Lu Zhou smiled and looked at the questions as he said, "No of course not, it just doesn't look easy."

Professor Lu Shenjian smiled and did not respond. Instead, he crossed his legs and waited patiently.

Easy?