为了保证CPU执行程序指令时能正确访问存储单元，需要将用户程序中的逻辑地址转换为运行

多用电表是实验室和生产实际中常用的仪器．

（1） 如图甲是一个多用电表的内部电路图，在进行电阻测量时，应将S拨到_____或_____两个位置，在进行电压测量时，应将S拨到______或______两个位置．

（2）使用多用电表进行了两次测量，指针所指的位置分别如图11乙中a、b所示。若选择开关处在“×10Ω”的电阻档时指针位于a，则被测电阻的阻值是_________Ω．若选择开关处在“直流电 压2.5V”档时指针位于b，则被测电压是_____________V；

Americans have four primary avenues for making friends: at work, at school, through a hobby or a (1) such as volunteer work and discussion group, or through a family or (2) .
In American culture, a job is more than the work that one performs between the hours of 9 a.m. and (3) . Work becomes a major socializing influence. Many young mothers who (4) their jobs to care for small children remark on the loneliness of their new lifestyles because they have lost their forum for (5) .
A great number of American employers recognize business social (6) and use it to build a family atmosphere on the job so that employees will feel (7) in their work environment. Some employers arrange company get-togethers in their home or at a (8) . American companies have at least one (9) annually, usually at Christmas time. Many corporations have (10) where employees and administrators alike dress (11) to play games such as baseball and volleyball.
Top American administrators often hold social gatherings (12) . Depending upon the size of the employer’s home and the number of (13) . These social gatherings may be picnics, pool parties, or (14) . If the company is large, an employer may hold what Americans call (15) . For an open house, the employer will invite his employees to come to his home (16) between 1 p.m. on a certain day. Those invited usually stay for (17) , chatting with the other guests and their host. People come and go (18) during the designated hours, and the host keeps refreshments, usually (19) or hors d’oeuvres and beverages, available for all who come. For such social gatherings, it is considered (20) the invitation unless you have an excellent reason.

( )不属于正式沟通渠道的优点。

A．直接明了
B．易于保密
C．沟通效果好
D．保持权威性

要求外国优先权的外国申请，其所属国家应符合下列哪些条件？（）

A.该外国参加了巴黎公约

B.该外国同中国签订双边保护专利，相互承认优先权的协议

C.申请人所属国的法律中，订有依互惠原则给外国人以专利保护

D.外国申请人对其发明的重要性作出了说明

建筑物，铁路，河流下采煤叫“三下”采煤。