锥形胶芯环形防喷器，胶芯由（）块铸钢支承筋与橡胶硫化而成。A、10～14 B、12～

执行以下程序段后，AX=( )。
TAB DW 1，2，3，4，5，6
ENTRY EQU 3
MOV BX， OFFSET TAB
ADD BX， ENTRY
MOV AX， [BX]

A．0003H

B．0300H

C．0400H

D．0004H

石油钻探的钻头用金刚石做，这是利用了金刚石的______大的物质属性，组成金刚石的碳原子是由______和电子组成的．

直流PWM调速系统中泵升电压是怎样产生的？

(66) is a one-way function that takes an arbitrarily long piece of plaintext and from it computes a fixed,length bit string. (67) is a protocol that most USENET machines now use it to allow news articles to propagate from one machine to another over a reliable connection. (68) is an approach preferred by cable TV providers. In this solution the fiber terminates at an opt~electrical converter and the final segment is a shared coaxial cable. (69) is a device used to connect two separate network that use different communication protocol. (70) is a digital-to-digital polar encoding method in which the signal level is always either positive or negative.

A．RTP

B．RTTP

C．FTP

D．NNTP

邮政代理金融营业网点每日营业前，由（）负责检查监控设备运行是否正常，并进行运行情况登记。

A、普通柜员

B、综合柜员

C、支局长

D、保安人员