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单选题
However fast or slow the combustion rate, it is still a （） between carbon, hydrogen, sulphur and oxygen that releases heat.
A
physical deformation
B
state exchange
C
chemical reaction
D
coalescence
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资料：Large industrialized are now in a recession. What are the prospects for economic recovery?
The three most important industrial economies in the world are, at the moment, facing enormous problems. Germany is struggling with the cost of reunification and is in recession. Japan is also experiencing recession and the United States has a large budget deficit.
Forecasters and analysts face questions about the prospects of an economic recovery. Here are some of their findings:
The election of a new president of the United States gave hope to the rest of the world. If the US recovered, the rest of the world would face a more promising future. However, analysts now accept that the US will only recover very slowly.
Consumer and investor confidence is still lacking. Large deficits and declining short-term interest rates mean there is little scope for economic stimulus.
The Japanese economy, after years of trade and budget surpluses, is in deep recession and the growth rate has slowed down considerably. German economists have lowered their forecasts for economic growth this year. The lowering of German interest rates may bring some relief to other members of the European Exchange Rate Mechanism （ERM）. However, Germany's importance as Europe's largest export market may decline.
However, in some parts of the world, there are more positive signs, particularly in some Latin American countries in South-East Asia. Analysts says that, as long as the rate of interest stays above the rate of growth at national income, then the ratio of debt to income will get worse. Falling interest rates help towards overcoming this problem. They believe it may take several years before there is real recovery. However, advances in technology are offering hope for the world economy.
According to the passage, which one is NOT true?
A.Consumer and investor still hold confidence in the US economy.
B.There is little scope for provoking the economy.
C.US is predicted to be recovering very slowly.
D.The US recovery would give the rest of the world a more promising future.
考题
资料：Large industrialized are now in a recession. What are the prospects for economic recovery?
The three most important industrial economies in the world are, at the moment, facing enormous problems. Germany is struggling with the cost of reunification and is in recession. Japan is also experiencing recession and the United States has a large budget deficit.
Forecasters and analysts face questions about the prospects of an economic recovery. Here are some of their findings:
The election of a new president of the United States gave hope to the rest of the world. If the US recovered, the rest of the world would face a more promising future. However, analysts now accept that the US will only recover very slowly.
Consumer and investor confidence is still lacking. Large deficits and declining short-term interest rates mean there is little scope for economic stimulus.
The Japanese economy, after years of trade and budget surpluses, is in deep recession and the growth rate has slowed down considerably. German economists have lowered their forecasts for economic growth this year. The lowering of German interest rates may bring some relief to other members of the European Exchange Rate Mechanism （ERM）. However, Germany's importance as Europe's largest export market may decline.
However, in some parts of the world, there are more positive signs, particularly in some Latin American countries in South-East Asia. Analysts says that, as long as the rate of interest stays above the rate of growth at national income, then the ratio of debt to income will get worse. Falling interest rates help towards overcoming this problem. They believe it may take several years before there is real recovery. However, advances in technology are offering hope for the world economy.
It could be implied that rising of the interest rate ______.A.can help towards overcoming this problem about the ratio of debt to income
B.may lead Germany's importance as Europe’s largest export market to decline
C.may bring some relief to other members of the European Exchange Rate Mechanism
D.None of above
考题
Although legal,official discrimination has been abolished（）Adiscrimination in employment still existsBdiscrimination in university admission still existsCpoverty rate of the blacks is the highest among all racial and ethnic groupsDinequality and subtle discrimination still exist
考题
TCP实现拥塞控制的方法有（）。A、slow start（慢启动）B、congestion avoidance（拥塞避免）C、fast retransmit（快速重传）D、fast recovery（快速恢复）
考题
Which of the following is not a characteristic of fast switching？（）A、Fast switching reducesa routers CPU utilization， compared to process switchingB、All packets of a flow， except for the first packet， use the information in the fast cacheC、It can be enabled with the interface command ip route-cacheD、Fast switching uses a fast cache maintained in a router’s control planeE、The fast cache contains information about how traffic from different data flows should beforwardedF、Even though the fast switching is enabled， the first packet of a flow is still process switched
考题
Which of the following is TRUE about the ping -f command?（）A、 It is useful for diagnosing data dependent problems by filling the packet with the byte pattern following the "f" in the command line. B、 It is useful for flooding from slow character based terminals since it only displays a dot "." for each packet sent in fast mode. C、 It is useful for flooding from slow character based terminals since it only displays a dot "." for each packet sent and a backspace on returned in fast mode. D、 The command can only be run by root.
考题
单选题Although legal, official discrimination has been abolished, _____.A
discrimination in university admission still existsB
discrimination in employment still existsC
poverty rate of the blacks is the highest among all racial and ethnic groupsD
inequality and subtle discrimination still exist
考题
单选题The power developed by a large slow-speed main propulsion diesel engine is dependent upon the （）A
quantity of air it takes in and retains in the cylinders during a given time periodB
proportion of trapped air that is utilized in the combustion processC
thermodynamic efficiency of the engine cycleD
all of the above
考题
单选题If the engine does start on air, but combustion does not immediately begin, the cause may not be （）.A
low compressionB
failure of the fuel pump to discharge fuelC
incorrect timing of fuel pumpD
turning gear being still on
考题
单选题Which of the following is TRUE about the ping -f command?（）A
It is useful for diagnosing data dependent problems by filling the packet with the byte pattern following the f in the command line. B
It is useful for flooding from slow character based terminals since it only displays a dot . for each packet sent in fast mode. C
It is useful for flooding from slow character based terminals since it only displays a dot . for each packet sent and a backspace on returned in fast mode. D
The command can only be run by root.
考题
单选题The rate of fuel injection in a diesel engine cylinder depends primarily on （）.A
the size of the holes in the fuel nozzleB
timing of the pumpC
supply pressure to the pumpD
shape of the combustion chamber
考题
单选题If the engine does start on air, but combustion does not immediately begin, the cause may be （）.A
failure of the fuel pumpsB
starting air pressure too lowC
stop valve in air line closedD
the turning gear still engaged
考题
单选题Which of the following is not a characteristic of fast switching？（）A
Fast switching reducesa routers CPU utilization， compared to process switchingB
All packets of a flow， except for the first packet， use the information in the fast cacheC
It can be enabled with the interface command ip route-cacheD
Fast switching uses a fast cache maintained in a router’s control planeE
The fast cache contains information about how traffic from different data flows should beforwardedF
Even though the fast switching is enabled， the first packet of a flow is still process switched
考题
单选题What do campaigners who lobby to preserve languages do to save endangered languages?A
Take measures to slow down languages’ vanishing rate.B
Try to make known languages’ accelerating vanishing rate.C
Try all their out to record and reconstruct the vanishing languages.D
Slow down languages’ vanishing rate and meanwhile make it known.
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