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（一）
问题：
1．立式车床的用途有哪些？它的特征是什么？
2．与立式钻床比较，摇臂钻床有什么优点？

A.立式车床的用途有哪些？它的特征是什么？
2．与立式钻床比较，摇臂钻床有什么优点？

【参考答案】

1．立式车床主要用于加工直径大、长度短的大型和重型工件的外圆柱面、端面、圆锥面、圆柱孔或圆锥孔等。也可借助于辅助装置完成......

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If you are staying at a fancy place you mightfind a mint or some little candy on your pillow. Theseare free and nice, though I can live without them ifthe price of the room is $10 to $20 less per night. S1.______Some of the channels on the TV will be free, include S2.______probably a 'movie' channel or two. These channelsshow movies all the time and one of the things I like S3.______most about staying in hotels or motels. But there willalso be 'play-for-TV' channels which are not freeand the cost of using them will be added up to your S4.______bill. The phones will call anywhere in the hotel ormotel for freE.Anything else will probably be ratherexpensive—even local calls in the same town you are S5.______staying. Recently, I was traveling and I charged S6.______almost $1.00 just to call the operator of the phonecompany who was going to handle my credit carD.S7.______call. My suggestion for saving a few dollar would be S8.______to place your calls from the public phones you canprobably find in the lobby of where you are staying.Finally, be care of the refrigerator. Frequently the S9.______refrigerator is stocked with all sorts of delicious thingsto eat and drink, including snacks and beer. None ofthis is free and often it is fairly expensivE.S10.______【S1】

A.______
Some
B.______
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C.______
most
D.______
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staying.
F.______
almost
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某公司2001年1月1日平价发行债券，每张面值1000元，10年期，每年12月31日付息100元，到期归还本金1000元。要求计算：(1) 该债券票面收益率；(2) 假定2007年7月1日以1050元买入该债券，本期收益率是多少?如果2008年3月 1日以1100元的价格出售，计算持有期收益率和持有期年均收益率；(3) 假定2007年1月1日的市场利率为8%，则债券此时价格的范围为多少您才会购买?已知：(P A，8%，4)＝3.3121，(P F，8%，4)=0.7356

A.3121，(P/F，8%，4)=0.7356

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