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【单选题】
要制造直径16mm的螺栓,要求整个截面上具有良好的综合机械性能,用( )
A.
45钢经正火处理
B.
60Si2Mn经淬火和中温回火
C.
40Cr钢经调质处理
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参考答案:
举一反三
【单选题】_________includes factors and trends related to innovations that affect the development of new products or the marketing process.
A.
economic environment
B.
technological environment
C.
demographic environment
D.
sociocultural environment
【单选题】一台三相变压器的连接组为Y,d11,其中"d"表示变压器的____。
A.
高压绕组为星形接法
B.
高压绕组为三角形接法
C.
低压绕组为星形接法
D.
低压绕组为三角形接法
【判断题】互联网采用的通信协议是OSI(Open Systems Interconnection开放系统互联参考模型)
A.
正确
B.
错误
【简答题】音的四种物理属性: 、 、 、 。
【简答题】乐音的四种物理属性是 、 、 、 。
【单选题】计算机最先在会计领域处理什么业务?
A.
应付款管理业务
B.
应收款管理业务
C.
计算职工工资
D.
计提固定资产折旧
【单选题】Money demand behavior may
A.
change as a result of demographic trends or financial innovations such as electronic cash-transfer facilities.
B.
change only as a result of demographic trends.
C.
change only as a result of financial innovations such as electronic cash-transfer facilities.
D.
not change as a result of demographic trends or financial innovations such as electronic cash-transfer facilities.
E.
change as a result of demographic trends but not as a result of financial innovations such as electronic cash-transfer facilities.
【单选题】The ________ component of an organization's external environment is concerned with trends in population characteristics such as age, race, gender, education level, geographic location, income, and fam...
A.
demographic
B.
political
C.
economic
D.
sociocultural
【单选题】通过控制制冷压缩机的启停来进行制冷量的调节的方法是 ?
A.
间歇运行调节
B.
改变工作容积
C.
吸气节流调节
D.
变频调节
【单选题】Which of the following is considered to be a part of the marketing microenvironment of a firm?
A.
the political state of the country
B.
the cultural forces that exist in a society
C.
the suppliers of the company
D.
the different demographic trends in the market
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