既能祛风湿，又能退虚热的药物是（）。 A.独活 B.秦艽 C.防己 D.狗脊 E.川

2008年9月，国家有关部门查处了“三鹿”等“三聚氰胺”超标的问题奶粉，食品、药品安全的警钟敲响。这件事的存在说明[     ]

①国家应加大执法力度，依法打击侵害消费者权益的违法行为

②应加强企业的法制教育和诚信教育

③消费者应提高 * * 意识

④在我国现阶段，法律体系还不够完善

A．①②③

B．①③④

C．②③④

D．①②③④

(四) 80年代初期，为抵抗百事可乐咄咄逼人的竞争，可口可乐公司开始进行新产品研究。经过两年多的研究，花费400多万美元，研制出甜而可口的可乐配方，并了解到60％的消费者喜欢新口味。1985年5月，可口可乐公司推出新可乐，宣布放弃原始配方，并为新可乐的上市进行了大规模的广告宣传。开始，新可乐销量大幅度上升，但好景不长，市场很快就开始滑落。可口可乐公司每天接到1500次以上的电话和数袋邮件，表达顾客的愤怒和不满。一些老可乐饮用者甚至威胁说如果公司不回到原始配方上来，就要进行对抗性行动。电视、广播、报刊等媒体及商业评论家也对此提出了强烈的批评。面对这种局面，事隔两个月，可口可乐公司又重新推出老可乐，称之为古典可乐，并和新可乐一起在超级市场的货架上并列销售。同时宣布，仍维持新可乐“旗舰”的地位。但新可乐始终没有遍及全国。1985年底，古典可乐与新可乐在超级市场上的销量比例是2：1。1986年底，可口可乐公司的两大用户麦当劳和肯德基要求重新提供古典可乐。

(2000，80)推出新可乐的行为，在产品变化方面属于( )。

A．新产品开发

B．扩大产品宽度

C．加深产品深度

D．增大产品关联度

由n根等长水平放射形接地极组成的接地装置，其冲击接地电阻可按下式计算（）。

A.

B.

C.

D.

Looking back on my childhood, I am convinced (1) naturalists are born and not made. Although we were all brought (2) in the same way, my brothers and sisters soon gave up their pressed flowers and insects. (3) them, I had no ear (4) music and languages, I was not an early reader and I could not do mental arithmetic.Before World War I we (5) our summer holidays in Hungary. I have only the memory of the house we lived (6) , of my room and my toys. I can hardly (7) clearly the large family of grandparents, aunts, uncles and cousins who gathered (8) door. But I do have a clear memory of the dogs, the farm (9) , the local birds and, (10) all, the insects.I am a (11) , not a scientist. I have a p (12) of the natural world, and my enthusiasm has led me into varied investigation. I love discussing my favorite topics and enjoy (13)  the midnight oil  (14)  reading about other people’s observations and discoveries. Then  (15)  happens that brings these observations together  (16)  my conscious mind. Suddenly you fancy (想象), you see the answer  (17)  the riddle, and books, of which some might honor with the title of scientific research.But curiosity, a keen eye, a good memory and enjoyment of the animal and plant world do not make a scientist; one of the outstanding and essential  (18)  required is self-discipline, a quality I lack. A scientist requires not only  (19)  but also hard training, determination and a goal. A scientist, up to a point, can be made. A naturalist is  (20) . If you can combine the two, you get the best of both worlds.

第（13）空应选择（）

A．burning

B．making

C．hunting

D．turning