弯曲的磁力线有伸直的特性，迫使通电导线运动，起动机就是利用此原理制成的。

以下哪一本书编写的目的是“师夷长技以制夷”[ ]

A．《海国图志》

B．《天演论》

C．《治碱》

D．《庶民的胜利》

A transport layer protocol usually has several responsibilities．One is to create a process-to-process communication；UDP uses (1) numbers to accomplish this．Another responsibility is to provide control mechanisms at the transport level．UDP does this task at a very minimal level．There is no flow control mechanism and there is no(2) for received packet．UDP, however, does provide error control to some extent．If UDP detects an error in the received packet，it will silently drop it． The transport layer also provides a connection mechanism for the processes．The (3) must be able to send streams of data to the transport layer．It is the responsibility of the transport layer at (4) station to make the connection with the receiver, chop the stream into transportable units，number them，and send them one by one．It is the responsibility of the transport layer at the receiving end to wait until all the different units belonging to the same process have arrived，check and pass those that are (5) free, and deliver them to the receiving process as a stream．

（2）处应填（）。

A．connection

B．window

C．acknowledgement

D．destination

GMP的适用范围为

A．原料药生产中影响成品质量的关键工序

B．制剂辅料生产的全过程

C．生物制品生产的全过程

D．化学制剂生产的全过程

E．中药制剂生产的全过程

按照光通量在空间的分布情况，灯具可分为直接型、半直接型、均匀扩散型、半间接型和间接型，其中，直接型灯具的下半球的光通量占（）

A、0~10%

B、10%~40%

C、60%~90%

D、90%~100%

关于奥林匹克科学大会的描述，正确的是？（）

A.从1896年第一届现代奥运会开始就有

B.开会的地点在瑞士洛桑

C.奥林匹克科学大会组委会一般由奥运会举办国的国家奥委会确定

D.近年来讨论的主题逐渐集中到与奥林匹克运动有关的学科