为预防乙型肝炎病毒感染，可以采用下列哪种生物制品进行人工被动免疫（） A.抗毒素 B

各国经济形势的变化往往会在汇率上表现出来，如美元对日元的汇率，近年来就一直在l美元合80-140日元之间波动。这表明(　 )。 

A．一国货币的价格是由他国货币的价值决定的

B．一国货币的价值由他国货币的价格决定

C．汇率反映两国货币之间的比价关系　

D．汇率反映两国的经济发展水平

下列哪一项检查或症状不支持类风湿关节炎的诊断（）

A.30%～40%的患者出现干燥综合征临床症状

B.常规临床中测得的类风湿因子为IgM型，见于约70%的患者血清

C.抗角蛋白抗体谱阳性和手指及腕关节的X线片异常

D.患者HLA-B27阳性

头脑风暴法中专家小组规模以（）为宜。

A.5—10人

B.10—15人

C.15—20人

D.20—25人

How many coins do you have in your pocket right now? Three? Two? Or one? With a phone card, you can make up to 200 calls without any charges at all．

★What do you do with it?

Go to a telephone box marked "Phone-card"．Put in your card to start, make your phone call and when you have finished, the screen will tell you how much is left on your card．It costs no extra for the cards, and the calls cost 10 p（便士） per unit, the same as any other pay-phone call．You can buy it in units of 10, 20, 40, 50, or 100．

★Appear in a shop nearby．

Near each card-phone place, you will find a shop where you can buy one．They are at bus, train or metro stations．At universities, hospitals, clubs, restaurants and shopping centers, you can also buy it．

★No more broken pay-phones．

It is possible that many pay-phones don't work because they have been damaged． There are no coins in a card-phone to excite the thieves' interest in it．So you are not probably to find a broken one．

Get a phone-card yourself and try it out．Or get a bigger wallet．

小题1:The passage is most probably ____．

A．a warning

B．a notice

C．an advertisement

D．an announcement小题2:The underlined word "one" means ____．

A．a shop

B．a coin

C．a pay-phone

D．a phone-card小题3:It is suggested in the passage that you buy a phone-card because ____．

A．you have got a bigger wallet than others

B．it's convenient to make calls with a phone card

C．the phone box might have been damaged

D．there are many different kinds of phone-cards

关于肯氏一类缺损设计要点中，错误的是（）

A.力主要由基牙负担

B.增强义齿稳定

C.设计间接固位体

D.减小基牙扭力