由关节本身病变导致关节活动异常的疾病是（） A.肩周炎 B.韧带挛缩 C.肌肉痉挛

学校图书室有故事书1800本，比文艺书的50%还多80本，学校共有文艺书多少本？

我国某市(34°N，117°E)长跑比赛于北京时间某日11:30鸣枪开赛，图1 为某运动员比赛中经过图2中某点时的即时素描图，当运动员到达该点时， 其身影指向左前方（正北）并大致与身高相等。据此完成题。

小题1:当运动员身影如图1所示时，运动员位于图2中的点为

A．④

B．③

C．②

D．①小题2:此时比赛已进行约（ ）

A．18分钟

B．3 0分钟

C．42分钟

D．5 4分钟小题3:该运动会举办的日期可能是（ ）

A. 3月8日前后     B. 5月8日前后   

C. 8月5日前后     D 11月5日前后

Border Gateway Protocol(BGP) is inter-autonomous system （71） 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 （72） count is not the preferred route. For example, we may not want a packet through an autonomous system that is not secure even though it is 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 defining the path that leads to that （73） . 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 （74） routing is also not a good candidate for inner-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 routing （75） using the Dijkstra algorism.

74（）

A．status

B．search

C．state

D．research

神经系统钩端螺旋体病钩体血症期可以出现（）

A.头痛、发热

B.全身乏力

C.腓肠肌压痛

D.眼结膜充血

E.浅表淋巴结肿大

患者刘某，女，25岁，A1近中切角缺损，行烤瓷熔附金属全冠修复。

制作烤瓷熔附金属全冠底冠时，金属基底表面氧化膜厚度最佳值为

A．0.2～2μm

B．5～10μm

C．15～20μm

D．25～30μm

E．30μm

F．40μm

G．50μm