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科学家发现细菌细胞中存在清除入侵病毒DNA的功能系统(见下图1),并发明了CRISPR/Cas9基因编辑技术,目前已成为生物科学领域最热门的基因操作技术。下图2 是科研人员运用CRISPR/Cas9基因编辑技术(其中表达载体1的作用是在受体细胞中控制合成CRISPR复合体,表达载体2可以与相应DNA的同源区进行互换、重组),成功地将基因A精确导入到绒山羊细胞内的甲、乙两个基因之间,并和绿色荧光蛋白基因一起表达的过程示意图。请回答。

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    Recently,a very simple question became widely spread online: What China should be proud of?____

    Lanlan, whose real name is Negar Kordi, is from Canada.She came to China five years ago and is a student at Ningbo University.Now she has 120,000 fans on the Internet and the number is still growing.

    Lanlan loves China.____

    “It is the easiest country in which to find a job.If you are not too lazy, it is really very simple to find a job in China. I believe there're more job chances here than in any other country in the world.”

    “____About 400million Chinese are studying English.If they can speak good English in the future, China will have the greatest number of English speakers of any non-English speaking country.”

    “The speed of Chinese trains is fast. From Ningbo to Beijing, the train runs 1, 365kilometers for seven hours and the ticket fare is only 595yuan.”

    “Its public security is great.____ I have travelled in many countries,and I think China really is very safe.”

    “There are much more things China should be proud of. Many Chinese people often complain about China. At first, I believed that they didn't like China or that they loved western countries. But later, I realized that they just set a very high standard for China.____ Actually, China must be much better than other countries.”

A.The foreign language level is surprising.

B.This country of 1.4billion people makes me feel safe.

C.A foreign girl living in China gave a very touching answer.

D.They believe that it's not enough to be number one in the world.

E.She believes China will be the strongest country in the world in future.