已于2010年5月1日隆重开幕的上海世博会将实现”环保世博、生态世_爱下问搜题

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问题选择题

已于2010年5月1日隆重开幕的上海世博会将实现”环保世博、生态世博”目标，下列做法不利于实现这一目标的是（　　）

A．鼓励广大市民购置小轿车，为参观世博各展馆提供便利

B．利用可降解的“玉米塑料”替代聚乙烯塑料饭盒，可防止产生白色污染

C．某些展馆的外壳使用非晶硅薄膜，以充分利用太阳能

D．停车场安装催化光解设施，可将汽车尾气中CO和NO_x反应生成无毒气体

答案

A、大量使用小轿车会增加汽车尾气的排放，污染空气，所以我们应该大力发展公交车来替代小轿车，以减少空气的污染，故A错误；

B、世博会期间，利用可降解的“玉米塑料”替代一次性饭盒，可防止一次性饭盒产生白色污染，故B正确；

C、太阳能属于无污染的新能源，所以某些馆的外壳使用非晶硅薄膜，以充分利用太阳能，是非常环保的，故C正确；

D、将汽车尾气中CO和NO_x反应生成无毒气体杜绝了因汽车尾气造成的空气污染，符合环保世博、生态世博目标，故D正确．

故选A．

完形填空

My father was in the navy, which meant that my mother was married to both my father and the sea. As was often the       , we had to pack our belongings into boxes and    those we had grown to love. We would arrive at our new home and find ourselves once again standing at the pier (码头)      good-bye to my father as his ship pulled him away from us. My mother would turn my brother and me around before the ship was out of     , wipe our tears, and take us back home to start the process of    in the new environment again.
Throughout the years of changing     , schools and friends, there remained one constant in my childhood — my mother. For both my    and me, she was the cook, maid and teacher. She played these roles while    some type of part-time job. Leaving a       career is just one of the sacrifices which my mother made for my family as we moved around the world with our father every three years or so.    she had to deal with only a small budget, my mother,     , managed to make each house the very home that is safe and     .
This probably sounds like a depressing way to live,      with two small children: “single”
parenthood, short-term friendships, and the inability to    her career or establish a home. But it was not for my mother. She turned this    into adventure for us all! Each relocation (变换位置) was a chance to    another part of the world. My mother greeted each new culture, climate and neighborhood. Each new house was a    to rearrange furniture, make curtains and    pictures. Every part-time job was an opportunity to learn something new and work with interesting people.
No matter how difficult the life was, she was always having a    attitude. She always had strength in the face of struggle and change. My mother was so    all those years during my childhood — she was my island in a sea of change. She is my hero.

B．leave behind

B．comfortable

D．opportunity

A．experienced

多项选择题

鼻部脑膜脑膨出的组织学结构为（）

A.皮肤或粘膜皮下或粘膜下组织

B.硬脑膜

C.脑脊液

D.脑组织

E.以上都不对