已知：a-1a=1，则a8+1a8=______．

The Nobel Prize for Literature  was _______ awarded to a Chinese writer, Mo Yan.

A．the first time

B．for the first time

C．on the first time

D．the only time

出境入境人员和交通运输工具应当接受出境入境边防检查。

朱某伪造赵某签发一张汇票给李某，那么，这张汇票上的票据责任（）

A.应当由朱某承担

B.应当由赵某承担

C.应当由朱某和赵某共同承担

D.朱某和赵某都不承担

采煤机液压系统中使用的内曲线马达的特点是（）。

A、转速高

B、扭矩大

C、油缸小

D、无齿轮

E、输出轴转速低

Open Shortest Path First(OSPF)is a (8) routing algorithm that (9) work done on the OSI IS-IS intradomain routing protocol. This routing, as compared to distance-vector routing, requires (10) processing power. The Dijkstra algorithm is used to calculate (11) OSPF routing table updates only take place when necessary, (12) at regular intervals.

9（）

A．derived from

B．deviated from

C．was derived from

D．was deviated from