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【简答题】
（a）程控电话交换机的接口电路中，可实现馈电、数模变换等功能的装置是（1）；可实现同步和码型变换等功能的装置是（2）。 （b）ATM网络的协议栈包括：物理层、（3）和ATM适配层（AAL层）；在IPoA系统中， 高层的IP包可采用（4）规范来适配。 （c）在Internet网络中，传统的IP路由交换是基于（5）进行寻址来实现交换的；在MPLS网络中，MPLS交换是基于（6）进行转发来实现交换的。
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参考答案：
举一反三
【多选题】以下有关会计凭证的表述正确的有( )。
A.
记账凭证是会计人员根据审核无误的原始凭证,按照经济业务的内容加以归类,并据以确定会计分录后所填制的书面证明
B.
记账凭证是将原始凭证中的一般数据转化为会计语言
C.
会计凭证是介于原始凭证与账簿之间的中间环节,是登记账簿的依据
D.
记账凭证是介于原始凭证与账簿之间的中间环节,是登记账簿的依据
查看完整题目与答案
【单选题】The selection of an oil depends （） on the operating conditions, the design of the engine and the type of fuel to be burned.
A.
to a great extent
B.
on a great extent
C.
on mainly
D.
on only
查看完整题目与答案
【单选题】听力原文：W: Let's look at the survey on drug use and health we conducted yesterday.How reliable are these figures? M: They have a 3% margin of error. Q: What are the speakers talking about? (14)
A.
Newly-launched products.
B.
Drug users.
C.
Survey results.
D.
Public figures.
查看完整题目与答案
【单选题】The piston then travels up through the cylinder and ( ) the burned fuel charge.
A.
opens
B.
closes
C.
exhausts
D.
none of above
查看完整题目与答案
【单选题】If fuel is burned from only the starboard tanks,the ship will___
A.
go down by the head
B.
list to starboard
C.
trim by the stern
D.
list to port
查看完整题目与答案
【单选题】What is Caplan' s opinion in the last paragraph?
A.
Registry of drug trials is of no use.
B.
We should make demands on new drugs besides registering drug trials.
C.
To put requirements on new drugs is much more effective than registering drug trials.
D.
A new drug must be safe and better than any other drugs already on the market.
查看完整题目与答案
【单选题】Suppose the United States steps up efforts to combat drug trafficking and, with the aid of the Colombian military, destroys a significant percentage of cocaine crops. Predict the impact of increased d...
A.
The supply of cocaine will increase causing the price of cocaine to increase.
B.
The demand for cocaine will increase causing the price of cocaine to increase.
C.
The supply of cocaine will decrease causing the price of cocaine to increase.
D.
There will be a movement up along the supply curve of cocaine.
查看完整题目与答案
【单选题】Because fuel is burned inside the engine cylinder, the engine is called an ____.
A.
engine
B.
internal combustion engine
C.
gasoline engine
D.
diesel engine
查看完整题目与答案
【多选题】以下有关会计凭证的表述,正确的有
A.
会计凭证可以记录经济业务
B.
会计凭证可以明确经济责任
C.
会计凭证可以监督经济活动
D.
会计凭证是登记账簿的依据
查看完整题目与答案
【简答题】As fuel is burned in the engine, about one-third of the heat energy in the fuel is converted into power.
查看完整题目与答案
相关题目：
【多选题】以下有关会计凭证的表述正确的有( )。
A.
记账凭证是会计人员根据审核无误的原始凭证,按照经济业务的内容加以归类,并据以确定会计分录后所填制的书面证明
B.
记账凭证是将原始凭证中的一般数据转化为会计语言
C.
会计凭证是介于原始凭证与账簿之间的中间环节,是登记账簿的依据
D.
记账凭证是介于原始凭证与账簿之间的中间环节,是登记账簿的依据
查看完整题目与答案
【单选题】The selection of an oil depends （） on the operating conditions, the design of the engine and the type of fuel to be burned.
A.
to a great extent
B.
on a great extent
C.
on mainly
D.
on only
查看完整题目与答案
【单选题】听力原文：W: Let's look at the survey on drug use and health we conducted yesterday.How reliable are these figures? M: They have a 3% margin of error. Q: What are the speakers talking about? (14)
A.
Newly-launched products.
B.
Drug users.
C.
Survey results.
D.
Public figures.
查看完整题目与答案
【单选题】The piston then travels up through the cylinder and ( ) the burned fuel charge.
A.
opens
B.
closes
C.
exhausts
D.
none of above
查看完整题目与答案
【单选题】If fuel is burned from only the starboard tanks,the ship will___
A.
go down by the head
B.
list to starboard
C.
trim by the stern
D.
list to port
查看完整题目与答案
【单选题】What is Caplan' s opinion in the last paragraph?
A.
Registry of drug trials is of no use.
B.
We should make demands on new drugs besides registering drug trials.
C.
To put requirements on new drugs is much more effective than registering drug trials.
D.
A new drug must be safe and better than any other drugs already on the market.
查看完整题目与答案
【单选题】Suppose the United States steps up efforts to combat drug trafficking and, with the aid of the Colombian military, destroys a significant percentage of cocaine crops. Predict the impact of increased d...
A.
The supply of cocaine will increase causing the price of cocaine to increase.
B.
The demand for cocaine will increase causing the price of cocaine to increase.
C.
The supply of cocaine will decrease causing the price of cocaine to increase.
D.
There will be a movement up along the supply curve of cocaine.
查看完整题目与答案
【单选题】Because fuel is burned inside the engine cylinder, the engine is called an ____.
A.
engine
B.
internal combustion engine
C.
gasoline engine
D.
diesel engine
查看完整题目与答案
【多选题】以下有关会计凭证的表述,正确的有
A.
会计凭证可以记录经济业务
B.
会计凭证可以明确经济责任
C.
会计凭证可以监督经济活动
D.
会计凭证是登记账簿的依据
查看完整题目与答案
【简答题】As fuel is burned in the engine, about one-third of the heat energy in the fuel is converted into power.
查看完整题目与答案
参考解析：
知识点：
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