f（x）=x2x＞0πx≤0，则f{f[f（-3）]}等于（ ） A．0 B．π 4

列宁说：“彼得一世改革是‘跳出落后圈子的一种独特的尝试’。”列宁指的是   [ ]

A．使用野蛮的手段推行资本主义制度   

B．效法西方废除沙皇专制体制   

C．引进西方成果摆脱封闭落后局面   

D．废除农奴制度，巩固沙皇专制统治

关于退休养老规划，说法不正确的是（）。

A.退休养老规划就是为了保证客户在将来有一个自立的、有尊严的、高品质的生活

B.退休后能享受自立、尊严、高品质生活的一个人一生中最重要的财务目标

C.退休养老规划是整个个人财务规划中不可缺少的部分

D.退休养老规划投资主要考虑的是收益性

某建设项目基准收益率为10%，项目建设投资200万元，建成后每年收益60万元，请对5～9题进行回答。

若该项目是采用贷款的方式筹集资金，根据我国的历史数据，对于此项目，利息备付率和偿债备付率应 ( )。

A．均大于1

B．分别大于2和1.3

C．均大于2

D．分别大于2和1

阅读理解。

     New archaeological discovers suggest that trade between Europe and Asia along the Silk Road probably

began in some form many countries earlier than once thought. The findings, coupled with a widening range

of scientific and historical research could add a fascinating new page to the epic of the Silk Road.

     The latest and most surprising discovery is pieces of silk found in the hair of and Egyptian mummy from

about 1000 BC, long before regular traffic on the Silk Road and at least one thousand years before silk was

previously thought to be used in Egypt. Other research may extend human activity along this route back even

further, perhaps a million years to the migration of human ancestors into eastern Asia.

     The official origin of East-West commerce along the road is usually placed in the late 2nd century BC

which was the agent of the Chinese Emperor Wu-di returned from a dangerous secret mission (使命) across

the desert into the remote high country of Central Asia. The agent, Zhang Qian, travelled as far as Afghanistan

back knowledge of even more distant lands such as Persia, Syria and a place known as Lijien, perhaps Rome.

Historians have called this one of the most important journeys in ancient times. His journey opened the way

for what have been thought to be the first indirect contacts between the ancient world's two superpowers,

China and Rome. Chinese silk, first traded to central Asian tribes for war horses and to the Parthians of old

Persia in exchange for acrobats and ostrich eggs, was soon finding its way through a network of merchants

to the luxury markets in Rome.

     But the new discoveries show that Chinese silk was apparently present in the West long before the Han

emperor started organized trade over the Silk Road. The research could change thinking about the early history

of world trade and provide insights into the mystery of just how and when Europe and the Mediterranean lands

first became aware of the glorious culture at the other end of Eurasia.

1. The word "coupled" in the first paragraph could best be replaced by _____.

A. produced

B. contributed

C. doubled

D. combined

2. The silk thread found in the hair of an Egyptian mummy suggests that _____.

A. Egyptians had probably travelled to China to buy silk

B. trade along the Silk Road began earlier than once thought

C. historical research often achieves fascinating results

D. new light can now be thrown on ancient trading practices

3. Until recently most historians believed that trade along the Silk Road _____.

A. originated in the 2nd century BC

B. extended human migration into eastern Asia

C. began a million years ago

D. primarily benefited the Egyptians

4. Historians have always considered Zhang Qian's mission important because they believe _____.

A. be brought back knowledge of Rome to the emperor

B. be discovered the Silk Road

C. be helped establish East-West trade

D. be travelled as far as Afghanistan

设备负荷实验工作时出现严重的“颤抖”，是最常出现的问题，是一种（）的反映。

A.一般故障

B.简单故障

C.疑难故障

D.综合故障