亚基解聚时 A．一级结构破坏 B．二级结构破坏 C．三级结构破坏 D．

如图是中国象棋棋盘。传说象棋是舜的弟弟象发明的，所以叫“象棋”。如果这种说法成立，那么中国象棋最早应出现于

A．原始社会

B．西周

C．夏朝

D．商朝

有四支温度计，测量范围分别是：

A．﹣10~110°C    

B．35~42°C    

C．﹣20~50°C    

D．0~50°C

（1）若要测量沸水的温度应选              ．

（2）若要来测量南京气温应选              ． 

（3）如图是常用的一种体温计，它是根据液体              的规律制成的，此时它指示的温度是            ℃．

— Do you know the girl _____ wears glasses?

— You don't know? She is our new classmate. [ ]

A. what

B. which

C. where

D. who

工伤事故发生后，如果事故的责任在职工本人，企业就不必对受害者进行补偿

A transport layer protocol has several responsibilities, One is to create a process-to-process (program-to-program) communication; TCP uses port (11) to accomplish this. Another responsibility of a transport layer protocol is to create a (12) and error-control mechanism at the transport level．TCP uses a sliding (13) protocol to achieve flow control．It uses the acknowledgment packet，time-out，and retransmission to achieve (14) control．The transport layer is also responsible for providing a connection mechanism for the application program．The application program sends (15) of data to the transport layer．It is the responsibility of the transport layer at the sending station to make a connection with the receiver．

A．path

B．window

C．frame

D．diagram