下面漫画反映了侵犯劳动者正当权益的现象。要解决漫画所反映的问题需要多方面的共同努力，

下列符合神经纤维瘤病的是（）

A.有家族遗传史

B.无家族遗传史

C.肿瘤是单发的

D.多伴有厚甲

E.无咖啡斑

阅读理解

     A recent study of ancient and modern elephants has come up with the unexpected conclusion

that the African elephant is divided into two distinct (不同的) species.

     The discovery was made by researchers at York and Harvard Universities when they were

examining the genetic relationship between the ancient woolly mammoth and mastodon to

modern elephants-the Asian elephant, African forest elephant,and African savanna elephant.

Once they obtained DNA sequences (序列) from two fossils (化石), mammoths and mastodons,

the team compared them with DNA from modern elephants.They found to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and

mammoths.

     The scientists used detailed genetic analysis to prove that the African savanna elephant and

the African forest elephant have been distinct species for several million years.The divergence

of the two species took place around the time of the divergence of Asian elephants and woolly

mammoths.This result amazed all the scientists.

     There has long been debate in the scientific community that the two might be separate

species, but this is the most convincing scientific evidence so far that they are indeed different

species.

     Previously, many naturalists believed that African savanna elephants and African forest

elephants were two populations of the same species, despite the elephants' significant size

differences.The savanna elephant has an average shoulder height of 3.5 metres while the forest elephant has an average shoulder height of 2.5 metres.The savanna elephant weighs between six and seven tons, roughly double the weight of the forest elephant.But the fact that they look so

different does not necessarily mean they are different species.However the proof lay in the

analysis of the DNA.

     Alfred Roca, assistant professor in the Department of Animal Sciences at the University of

Illinois, said, "We now have to treat the forest and savanna elephants as two different units for

conservation purposes.Since 1950, all African elephants have been conserved as one species.

Now that we know the forest and savanna elephants are two very distinctive animals, the forest elephant should become a bigger priority(优先) for conservation purposes."

1. One of the fossils studied by the researchers is that of________.

A. the Asian elephant            

B. the forest elephant

C. the savanna elephant          

D. the mastodon elephant

2. The underlined word"divergence" in Paragraph 4 means "________"．

A. evolution              

B. exhibition

C. separation            

D. examination

3. The researchers' conclusion was based on a study of the African elephant's________.

A. DNA            

B. height

C. weight          

D. population

4. What are Alfred Roca's words mainly about?  

A. The conservation of African elephants.

B. The purpose of studying African elephants.

C. The way to divide African elephants into two units.

D. The reason for the distinction of African elephants.

读“珠江三角洲与长江三角洲地区国际直接投资和外贸额所占全国比重的变化图”，回答问题。

小题1:以下叙述正确的是（　　 ）

A．2001年，长江三角洲地区国际直接投资额占全国的比重首次超过珠江三角洲地区

B．长江三角洲地区外贸额占全国的比重不断上升，并超过珠江三角洲地区

C．珠江三角洲地区外贸额占全国的比重从1993年起一直呈下降趋势

D．图中所示的变化与外商投资区位选择的变化有关小题2:20世纪90年代以来，对比长江三角洲地区，珠江三角洲具有的优势条件是（　　 ）

A．产业基础良好

B．毗邻港澳和东南亚地区

C．腹地范围广阔

D．技术水平高

一项工作，甲每天做8小时，30天能完成；乙每天做10小时，21天就能完成；丙每天做5小时，40天能完成。甲每做6天要休息一天，乙每做5天要休息一天，丙每做4天要休息一天。现三人合做，每天都做8小时，做了6天(包括休息日在内)后，由乙独做，每天做6小时，那么完成这项工作至少要用（　　）天。

A．15

B．17

C．23

D．4

对利用行政记录可以获得的统计资料，无需再通过其他统计调查方法获取。