单项选择题 Questions 29 and 30 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news.
What was rejected by Columbia in January

A.The use of reconnaissance satellites in Columbia.
B.The training of counter-narcotics personnel.
C.The proposal of stationing warships off the Columbian coast.
D.The expanded use of military weapons.


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3.单项选择题Threats from nomadic people in the north were (31) throughout Chinese history. They were continually attacking the Chinese northern (32) . With each new emperor, came endless debate about how to (33) the barbarians. There were four options. (34) offensive campaigns to drive them away or to destroy them; create defensive garrisons; develop diplomatic and (35) ties with them, or build a wall to keep them out.
All the options were (36) at various times. Experience showed that (37) campaigns were too costly and very risky, (38) defensive garrisons could not respond quickly enough (39) lightning attacks along a long border. The third option would seem to be a very (40) one and it was in fact tried successfully (41) a couple of occasions. Wall building became the most favored option in many dynasties. The three dynasties which (42) the most walls were the Qin, the Han and the Ming.
The effectiveness of the Great Wall in history is still a controversial (43) . Historical records show that the wall (44) at many times (45) repel invaders. Only on two occasions when a dynasty weakened from (46) were invaders from the north (47) advance and conquer. (48) , scholars think the Chinese wall builders were themselves responsible for the unrest on the border. The nomads were people who did not farm, so they (49) trade with China for many essentials. When the Chinese refused to trade with them, they had no option (50) raid border towns.

A.continuous
B.constant
C.instant
D.urgent

4.单项选择题 Questions 21 to 23 are based on the following news. At the end of the news item, you will be given 15 seconds to answer the questions. Now, listen to the news.
What was the cause of the explosion

A.Children playing with fire.
B.Fireworks set off in a house with explosives.
C.Sparks from a fireworks display falling on the warehouse.
D.The firing of a gun.

5.单项选择题 Questions 18 to 20 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now, listen to the passage.
Mental decay due to aging is ______ .

A.common
B.much more common than most people believe
C.much less common than most people believe
D.true of those over sixty

6.单项选择题 Questions 29 and 30 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news.
According to the news, what are Defense Department officials expected to do on Friday

A.To announce the plans to detect drug smugglers.
B.To stop the flow of drugs northward from Latin America.
C.To expand the use of military personnel.
D.To throw more ships, planes and personnel into the anti-drug movement.

7.单项选择题Question 26 is based on the following news. At the end of the news item, you will be given 5 seconds to answer the question. Now, listen to the news.

A.Several days before the swearing-in ceremony.
B.Several days after the swearing-in ceremony.
C.Two days before the swearing-in ceremony.
D.Two days after the swearing-in ceremony.

8.单项选择题 Questions 27 and 28 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news.
Fighting broke out on train to Manchester ______ .

A.between football fans supporting rival teams
B.between football players of rival teams
C.between football supporters and the police
D.between football players and the police