The most profitable thing is actually not selling guns, and as soon as Meng Xiang finished sighing, he suddenly thought of something - penicillin.

Cannons are only sold domestically, and foreign countries are all self-produced. Those countries that cannot produce their own products do not necessarily deal with them. But if it's penicillin, it's a good thing that is needed by all ages and must be used by the military and civilians! If penicillin was produced ahead of schedule, how much would it sell for the world?

When Meng Xiang thought of the high windfall profits of penicillin, which was equivalent to gold, his heartbeat couldn't help but speed up a few times. It seems that during World War II, penicillin was already ready to be produced.

"Level up!" Meng Xiang immediately invested the money he earned into the base and began to upgrade the science and technology center.

The upgrade was quick, and it was completed in one day.

It's just that during this period of time, the four scientists who were immersed in the science and technology center were invited out when they were upgraded, and they complained slightly.

During this period of time, they lived very comfortably, and there were cooks specially found by Meng Xiang to open a small stove for them. Of course, Meng Xiang is also tired of eating nutritious meals, and by the way, he will improve his life. There are clone soldiers around him to serve him, and all kinds of miscellaneous clone soldiers are hard-working and never oppose refusal.

Meng Xiang produced eight more engineers and gave them assistants. Although these clone engineers are a little less able to think, their hands-on skills are absolutely top-notch, comparable to that of German technicians.

Meng Xiang did not limit their research, and they were free to study the topics they were interested in. So much so that after a long time, they were a little uncomfortable, and often asked about secret experiments. As a last resort, Meng Xiang stuffed them with a few questions according to their strengths, and let them study them freely first.

The science and technology center gave them the best research conditions in China at this time, and they were also very dedicated to research.

Meng Xiang also thought about bringing in a few more talents, but unfortunately he was busy saving his life now, and the conditions were not ripe. And the cost of serving these aunts is also very high, and the base upgrade is enough for the time being, so I have to talk about it later.

As soon as the science and technology center was upgraded, Meng Xiang was surprised by the changes. This kind of change is so great that anyone who sees it will wonder how it can change so much in a day. As a last resort, he could only tell Zhu Kezhen and them that this was adjusted to another experimental center, anyway, Zhu Kezhen and they didn't know where they were, so they got in the car and turned around more than a dozen times, and drove directly to the newly upgraded science and technology center.

After receiving the information that they could enter, Zhu Kezhen and the others immediately entered the core area of the new science and technology center. After entering, they couldn't help but be amazed, the area here was larger, and the experimental equipment and instruments were more advanced, which was completely the most advanced and the best they had seen now, which could not surprise them.

Even the living quarters in the periphery of the science and technology center have improved a lot, and although they stay at home, what is not satisfactory about a scientist being able to achieve greater achievements in his field under such superior conditions?

They were just surprised by this big deal, not like the stingy political axe of the past, but they were already convinced of the secret experiment.

As soon as the science and technology center was upgraded, the first thing Meng Xiang upgraded was the hospital. He has been talking about penicillin for a while, mainly because it is too famous in later generations. The windfall profits of medicine are known to women and children in later generations, and there are not many threshold restrictions like arms.

But the reality is always a bit unsatisfactory.

"How so? How can this be? After being promoted to level 2, don't you already have the technology before the end of World War II? Why can't penicillin be produced yet? After Meng Xiang looked at the hospital's production catalog, he found that the item marked with penicillin was gray, indicating that it could not be produced.

Although Xiaohua's voice was a little colder, it was still unhurried: "The technology generated by the base has begun to transcend this space-time pattern and encounter powerful space-time barriers. The Commander's abilities must be increased in order to gain higher authority. ”

"What do you mean?" Meng Xiang asked back a little weakly, he was too lazy to argue with Xiaohua.

"After the base entered the second level, because there was a big deviation from the current time and space, it was hindered by a strong space-time barrier, so it had to be divided into three stages to gradually strengthen the commander's ability to unlock the barrier blockade one by one."

"What am I capable of? What abilities? Meng Xiang was pleasantly surprised, didn't he still have the ability to break the boundaries of time and space?

"The technical basis of the secondary base is the accumulation of technology from the end of World War I to the end of World War II. However, the current time of the A9527 space only runs until the beginning of the Anti-Japanese War, so it creates a space-time barrier.

The base's countermeasure is to break down this space-time barrier in three stages.

The first stage was the second primary stage, and the technical basis for development was from the end of World War I to the formal formation of the axis of Germany, Italy and China in September 1937. The commander needs to reach 1 million merit points, and after becoming the commander of the second-level primary base, the base can break this barrier blockade accordingly;

The second stage was the second-level intermediate stage, and the technical basis for development was from September 1937 until the United States declared its entry into the war and the Allied bloc was formed. After the commander needs to reach 10 million merit points, after becoming the commander of the second-level medium base, the base can break this barrier blockade accordingly;

The third stage is the second-level advanced stage, and the technological basis for development is from the formation of the Allied bloc when the United States declared its entry into the war until the end of World War II. After the commander needs to reach 100 million merit points, after becoming the commander of the second-level high-level base, the base can break this barrier blockade accordingly. ”

"I see. At the end of the day, it's just that I'm not good enough to unlock the full functionality of the base. Do you need to say so much? There are also 100 million merit points, and the end of the eight-year Anti-Japanese War may not necessarily be put together. Alas! Meng Xiang said dejectedly.

Originally, it was expected to be upgraded and developed into a technological stream, and some of those classic weapons in the late stage of World War II were used, and even a few atomic bombs were dropped directly on the Yueben Islands.

Now it's good, it's all in vain.

Meng Xiang finally got 100,000 merit points, so he naturally knows the difficulty of accumulating merit points. It's good to upgrade 1 million, but it's very difficult to upgrade 100 million points. You know, the GDP at this time is only a billion dollars. If you only rely on financial resources to accumulate meritorious deeds, I am afraid it will take several years to fill them all in, not to mention that Meng Xiang will have to worry about even one million at this time.

Although there are restrictions, there is no choice, so continue to upgrade and boil slowly!

"By the way, does it cost money to upgrade the base in stages?" Each upgrade requires a lot of money, which gives Meng Xiang a headache.

"No, the ban can be lifted as long as the commander reaches a certain level of merit, and there is no need to spend additional costs."

As soon as he heard this, Meng Xiang was a little more excited.

Only the commander needs to be upgraded, which undoubtedly saves a lot of money.

Lack of funds, you can fight devils and make military achievements! Anyway, the clones are cheap, and if you create 10 million clones, it's only a billion.

"I'm going to send a lot of barracks! Use crowd tactics to create 10 million clone soldiers and let them pee and drown the little devils! ”

Meng Xiang said proudly.