问题 单项选择题 A1/A2型题

尿液中最多见的结石为()

A.尿酸结石

B.草酸钙结石

C.磷酸盐结石

D.胱氨酸结石

E.黄嘌呤结石

答案

参考答案:B

解析:据结石分析报道,90%结石来源于草酸钙结晶。

单项选择题


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根据下列文字资料回答下面问题

据报:中国的消费增长速度惊人,2003年中国成品钢材消耗量已经大约2.5亿吨,20年增长8倍,为美国、日本、德国和法国钢铁消耗量总和的98.65%,约占世界总消耗量的22.8%;水泥消耗量约8亿吨,约为1983年的8倍,占世界总消耗量的48.9%左右;而能源消耗却占了30%,我国单位产值电能消耗为0.15千瓦时/元,是美国的3倍,日本的5倍,2003年我国电力消费为18043.5亿千瓦时,已经超过日本,居世界第二位,仅低于美国,但中国的GDP占世界的却不到5%。
从资源利用效率来看,以单位GDP产出能源表征的能源利用效率,中国与发达国家差距非常大,日本为1,意大利为1.33,法国为1.5,德国为2.17,英国为2.67,美国为3.5,而中国高达11.5,中国的耗能设备能源利用效率比发达国家普遍低30%~40%,每1000美元GDP排放的二氧化硫:美国为2.3千克。日本为0.3千克,而中国高达18.5千克。
从资源再生角度看,中国人均水资源拥有量仅为世界平均水平的1/4,但水资源利用率比发达国家低50%以上,中国的废旧轮胎再生利用率仅有10%左右,远低于发达国家。

2003年世界钢材消耗量为多少亿吨( )

A.10.96

B.20

C.2.53

D.8.95

阅读理解

第三部分:阅读理解(共20小题;每小题2分,满分40分)

Big things were happening in my life the summer I turned 13. In the middle of that summer, my parents shook my entire world and turned it upside down when they told me they were getting a divorce. I couldn't believe that our family was going to break up. Though I always knew my parents weren't very happy and they often fought, I still wanted my family to stay the same.

My life changed completely after the divorce.My mother and I moved into a small apartment across town,while my father and brother,Bill, stayed in our house.I now became a visitor whenever I went to see my dad and Bill on the weekends. And immediately I had my soon-to-be stepfather,Dan,whom I showed no interest in.I was clearly depressed, especially after Dan and my mother married and I realized that there was no way that things could change back to the way they had been.

Even though I resisted all Dan's attempts to get to know me and wasn't very nice to him, he never gave up on me. Gradually, I began to trust him. I realized that we actually had some things in common, especially when it came to movies and TV shows. We spent a lot of time together hanging out watching TV. That gave us a chance to talk and get to know each other.

Better still, Dan showed an interest in me that I had never experienced from my own father. Dan was always around when I needed advice on school or friends. Once I began to warm up to Dan, the three of us began spending a lot of time together. We often went out to eat and took short trips. Eventually, I discovered that I finally had the happy family that I had always wanted.

I now realize my parents were right about getting the divorce. Their breakup was the best thing to happen for all of us. My father also found happiness- he remarried and had another child, my half-sister, Michelle.    

At 13, I learned an important truth-change is not always the worst thing that can happen. Sometimes, it is just what we need the most.

61.According to the passage, which of the following statements is WRONG?

A.Their parents didn't love each other any longer.       B.The writer didn't want his parents to divorce.

C.Their parents' divorce hurt the writer much.     D.The writer was in low spirits all the time.

62.The writer and Dan have the same interests EXCEPT______.

A.seeing movies     B.surfing the internet     C.having talks D.watching TV

63.What does the author think of his stepfather?

A.Trustful.     B.Interesting.  C.Helpful.      D.Boring.

64.Which of the following is the best title for this passage?

A.Divorce Is Not Always the Worst.     B.A Devoted Stepfather.

C.There Is a Change in My Life.   D.A True Story.