按照下图所示的操作步骤，若输入x的值为5，则输出的值为____．

根据短文内容，选择最佳答案。    Several days ago, I went to my aunt's home and saw my cousin who is studying English linguistics in a university． He showed me his learning materials．Here are two pages of them.

Nice     Generally speaking, the word “nice” is quite an expression of praise. However, back in the late 12th century, if someone said you were “nice”, it was far from saying good words about you.     Very long ago, “nice” was used to mean “foolish” and “stupid”. That sounds more like the kind of words that would start a fight, not put a smile on someone's face. Later on in the 13th century, 'nice” came to mean “shy and nervous”. During the 14th century, it even meant “being careful”. But finally in the 18th century, it changed to the kinder meaning we know today, and ever since then, people have been using it in a lovable way.

Sad     All of us get sad from time to time. It's a usual part of life. A loved one passes away. We expect too much progress in an exam. Or the store is out of our favourite drink. These are all things that can make us sad.     However, once upon a time, “sad” had a very different meaning. Back in the 14th century, it was the perfect word if you had eaten too much food at dinner.     Through the years, the meaning of “sad” changed to “heavy” and then “tired”. Interestingly, when “sad” took on its present meaning, it was actually used instead of “unrot”, an old English word that was the opposite of “rot” that meant “cheerful” or “glad”.

    Now I know at some point in history, the meanings of some common words that we see every day meant something much different. The English language is developing all the time.

6个3相加的和再加上1个3是( )

阅读下文，回答相关问题。

                                                                                      以人为鉴
      郑公魏征①卒。征寝疾，上②与太子同至其第③，指衡山公主欲以妻其子叔玉④。征薨(hōng)⑤，上自制碑文，并为书石。谓侍臣曰：“人以铜为鉴⑥，可正衣冠⑦；以古为鉴，可知兴替⑧；以人为鉴，可明得失。朕(zhèn)⑨尝保此三鉴以防己过。今魏征没，朕亡一鉴矣。”

                                                                                                                                                                          (选自《史纲评要》)
【注释】①郑公魏征：魏征在世时封为郑国公。魏征是唐太宗时名臣，常给太宗李世民提意见。②上：指唐太宗李世民。③第：府第，封建社会中官僚的大宅子。④指：指名。衡山公主：唐太宗的女儿。叔玉：魏征之子。⑤薨：公侯死称薨。⑥鉴：镜子。⑦正衣冠：使衣冠正，把衣服、帽子穿戴整齐，这是使动用法。⑧兴替：兴衰。替，衰落。⑨朕：皇帝自称。

阅读下列材料，并结合所学知识回答问题。

材料一：在1914—1918年的战争中，交战国共计使用了45种以上约12.5万吨的毒气，造成了100多万人伤亡，其中死亡10万多人，化学武器属大规模的毁灭性杀伤武器，人们为禁止使用这种残忍的武器进行了不懈努力。后来，日内瓦议定书和《禁止化学武器公约》把化学武器押上了历史的审判台。

材料二：

材料三：抗日战争中，国共两党合作抗日，并广泛地动员全国民众。……民族工商业资本家踊跃购买国债，积极组织工厂内迁；科学家们在极其艰苦的条件下，为提高祖国的科学技术水平和综合国力而发奋工作；文化界人士组织许多救亡团体，宣传抗日；海外广大华侨节衣缩食，捐献大量钱财、衣物、药品、汽车等，支援祖国的抗战。

材料四《联合国宪章》规定：联合国应该采取有效的集体办法，防止和消除对和平构成威胁的因素，制止侵略和其他对和平构成破坏的行为，以和平方式，依据正义及国际法原则，调整和解决破坏和平的国际争端。