单项选择题：尿十联试带的检测项目不包括（）。 A.pH B.PRO C.维生素C D.KET E

题型：单项选择题

水既是生命之源，也是人们日常生活与工农业生产都离不开的物质．

（1）从物质组成上看，在海水、河水、湖水和矿泉水中含有丰富化学资源的是______；矿泉水是我们常见物质，鉴别矿泉水和蒸馏水的简单操作方法是______．

（2）进入北京市区的京密引水渠是向北京市供水的重要渠道．为了保护好城市用水，下列做法中，你认为应该阻止的是______（填序号）．

①在引水渠岸边堆放垃圾；②向引水渠中排放工业废水．

③在引水渠两岸植树造林；④向引水渠中倾倒生活污水．

（3）暴雨过后，河水浑浊能见度很低，某同学取回一瓶河水进行研究，他首先采用右图所示装置进行过滤，并确定所得无色透明液体为纯净物．你认为是否合理，并说明理由______．

（4）我市属于极度缺水的城市，为缓解我市水资源短缺状况，

请你结合生活实际，写一条具体做法______．

（5）如图所示的电解水实验中，有关反应的化学方程式为______；

查看答案

完形填空。
Li Lei gets an e-mail __1__ Jackson Wilson. Jack is a high school student in Canada. He wants to __2__Chinese. Dear friend, My name is Jack Wilson. I am from Toronto, __3__. I am 13 years old. I'm a schoolboy. I know China is a great __4__. I want to __5__ friends in China and I want to learn Chinese. There are nineteen students in __6__ class. My classmates are from six countries. They are learning English. My parents are from France. They __7__ French. I speak English and French. There are many Chinese __8__ in Toronto. I want to learn Chinese, __9__ I don't have any Chinese textbooks. Could you __10__ me? Please write back soon. Thank you. Jack Wilson
( ) 1. A. for ( ) 2. A. teach ( ) 3. A. Canada ( ) 4. A. city ( ) 5. A. have ( ) 6. A. his ( ) 7. A. speak ( ) 8. A. there ( ) 9. A. so ( ) 10. A. give	B. to B. study B. Japan B. country B. take B. your B. tell B. here B. and B. help	C. from C. speak C. Australia C. people C. give C. my C. say C. peoples C. for C. write	D. of D. know D. France D. school D. make D. their D. talk D. student D. but D. leave

尿十联试带的检测项目不包括（）。 A.pH B.PRO C.维生素C D.KET E