在物流系统中引入机械化、自动化、电子计算机技术的应用、通信技术、网络的建立，是为了实

下列各项中，应在购入短期债券投资时计入其入账价值的有（）。

A.债券的买入价

B.支付的手续费

C.支付的印花税

D.已到付息期但尚未领取的利息

用所给单词的适当形式填空。

1. That is  _____ ( he)  bag.  

2. These books  _____ ( be)  Jim's.  

3. Are those your  _____ ( CD) ?  

4. Please bring me some _____  ( photo) . 

5. Can you  _____  ( take) the book to your sister?   

6. _____   ( thank) for your ruler.   

7. I  ____ ( not) know your name.   

8. Here _____  ( be) my room.   

9. Where _____  ( be) your pencils?   

10.  _____  (it) are under the table.

任何单位或者个人设计民用航空器，应当向民航局申请（）

A.适航证

B.生产许可证

C.型号合格证

铁芯中产生涡流的原因是（）

A.交变的电场穿过铁芯

B.铁芯在电场中运动

C.绕组绝缘下降，在铁芯中形成漏电流

D.交变的磁通穿过铁芯

Border Gateway Protocol(BGP) is inter-autonomous system (96) protocol. BGP is based on a routing method called path vector routing. Distance vector routing is not a good candidate for inter-autonomous system routing because there are occasions on which the route with the smallest (97) count is not the preferred route. For example, we may not want a packet through an not secure even though it is the shortest route. Also, distance vector routing is unstable due to the fact that the routers announce only the number of hop counts to the destination without actually defining the path that leads to that (98) . A router that receives a distance vector advertisement packet may be fooled if the shortest path is actually calculated through the receiving router itself. Link (99) routing is also not a good candidate for inter-autonomous system routing because an Internet is usually too big for this routing method. To use link state routing for the whole internet would require each router to have a huge link state database. It would also take a long time for each router to calculate its rousting (100) using the Dijkstra algorism.

（97）是（）

A.path

B.hop

C.route

D.packet