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如图，使一根铜线在铅笔芯上移动，发现小灯泡的亮度会改变，说明了导体的电阻与______有关，除此之外，导体的电阻还与______、______有关（至少写出2个）

答案

当铜线在铅笔芯上移动时，灯泡亮度会改变，灯泡亮度会改变说明了通过灯泡的电流发生了变化，

从而说明电阻发生了变化，铜线在铅笔芯上移动就改变了铅笔芯接入电路的长度，

而材料和横截面积不变，说明只有长度影响了其电阻．

故答案为：长度，材料，横截面积．

完形填空

附加题（10分）(说明：这是高考1B考试中的06题，请根据上下文在空格中填上适当的词或括弧中单词的适当形式，每空1分)

No wonder that man in Munch’s The Scream is screaming. He keeps getting stolen. The famous painting went    1   in 1994 and again ten years later, both times from museums in Norway.    2  , security was extremely poor. Officials thought the painting was so famous that it wouldn’t be stolen. Wrong.

The world of art theft is not, as one might think, populated with intelligent persons who have a fine appreciation of art. Art thieves are thugs(流氓), according to a new book by Charley Hill. Hill was an undercover policeman    3   job was to track down stolen paintings. He says that the people who steal    4   were usually stealing wheels from cars a few years earlier. He describes priceless Vermeers being stuffed    5       the back of cars, Gainsboroughs being passed around by drug dealers with dirty hands and a nasty end to one of Henry Moore’s huge sculptures. The bronze, King and Queen, a    6   by Moore, was too heavy for the thieves to move, so they took out a chainsaw and cut off the heads, thinking those might be worth something.

The artworks usually turn up, sometimes many years    7  , though the police don’t always catch the thief. Even rarer is when a gentleman thief—one who steals art for personal pleasure only—is caught. In 2009, a waiter, Stephane from Switzerland, 32,    8        (find) guilty of stealing 69 artworks from museums since 1998. He told the court he did    9   for the love of art. His haul (赃物) was   10  over $1 billion—not bad for a waiter.
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单项选择题

据世界银行《1990年世界发展报告》，中学生占十二至十七岁人口比重，高收入国家 93%，上中等收入国家为67%，下中等收入国家为49%，低收入国家为26%，最低收入国家为12%；大学生占二十至二十四岁比重，高收入国家为39%，上中等收入国家为20%，下中等收入国家为16%，低收入国家为3%。最低收入国家为2%。 这段话支持的主要观点是( )。

A．比较中学生和大学生平均年龄段所占比重，高收入国家比低收入国家高

B．经济的先进与落后最后决定了国民素质的高低

C．国民素质的高低决定了一个国家经济的发展状况

D．一个国家经济的发展与国民素质的情况密切相关
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