When 4-year-old English family member Prince George(乔治王子) started his first day of school in September, Chinese language was on his curriculum(课程表).

    And he wasn't the only one kid. According to a report published by the British Council(英国文化协会) in September, about 51 percent of UK parents want their children to learn Chinese, because it's one of the most useful languages.

    In fact, the popularity of Chinese made the UK government start the Mandarin Excellence Programme in September last year. Its aim(目的) is to make at least 5000 English students speak Chinese well by 2020.

    Yet, the UK isn't the only country showing a growing interest in Chinese. The language becomes the second most spoken foreign language in the USA this year, after only Spanish, with over 2.1 million speakers.

    Many US famous people such as Facebook founder Mark Zuckerberg and Malia Obama, former US President(总统) Barak Obama's daughter, study Chinese as a second language. 

    In April, Arabella and Joseph Kushner, grandchildren of US President Donald Trump, sang the traditional folk music Jasmine in Mandarin for Chinese President Xi Jingping when the two leaders met in Florida.

     So far, 67 countries have studied Chinese in their national curriculum, reported the Chinese website.

Chinese has become more and more____.

某小组的同学在进行有关植物的光合作用的探究时，设计了如图三个装置，其中植物、培养液、隔板、光照、温度等条件都完全相同．装置中玻璃隔板与钟罩之间用凡士林密封，实验前，已将三个装置中的植物放在黑暗处一昼夜（即“饥饿”处理）．请据图回答问题：

“世界上的事情永远不是绝对的，结果完全因人而异。苦难对于天才是一块垫脚石，对于能干的人是一笔财富，对于弱者是一个万丈深渊。”巴尔扎克的话说明（    ）

①心理健康对于个人成长非常重要                 ②人们对挫折的承受能力各有不同

③挫折既是好事又是坏事，具有双重性         ④挫折孕育着成功

下列有关俄罗斯工业与矿产的说法正确的是（  ）