恩格斯指出：“全部的哲学，特别是近代哲学的重大的基本问题，是思维和存在的关系问题”。这一论断反映了

根据提供的语境，在下面句子的横线上填上恰当的内容。

    人生如同山中的树，生于南坡，阳光充足，____，可谓顺境；生于____，____，土壤贫瘠，可谓____。人们无法选择自己的家庭背景，但可以选择生活态度。

辛亥革命爆发后，美国某报报道：“如果中国成功地按美国政府的模式建立起一个联邦共和国，由在欧美留过学的具有西方观念的人任领导，日本将不再是东方最西化的国家。”此后建立的中华民国临时政府与该报道的设想相符的是(  )

针对上图中反映出的问题，我们当前可以做到（     ）

①保护耕地，节约粮食 ②节约用水，一水多用 ③提高煤炭、油气等常规能源的利用效率 ④用太阳能、风能等新能源完全替代常规能源

阅读理解
B
    Hello!I'm Kate．I want to talk about my smart phone(智能手机)．My smart phone is white．It's from my uncle Sam．He works in New York and comes back to London every December．I like mv smart phone．It is useful.
    The school rules don't allow(允许)us to take smart phones to school,so I usually use it after school or on the weekend．When I go out with my friends，I like keeping it in my bag．So my family can call me at any time．When I don't go to school．I like to call my friends to talk to them，or ask them for help with my study．I'm not very good at math，so I put an APP(应用软件)about math in my smart phone to help me． It is fun and helpful．I also use the smart phone to do some reading，play games，and watch movies．Isn't it great?
    Sometimes smart phones are not good for people．Some people spend too much time on it．I like my smart phone and I know how to let it help me. It's my good friend．
根据材料内容选择最佳答案。