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【简答题】
在管道工程中,弯管主要用作 、 和 。按是否加热可以弯管加工分为 和 。
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皮皮学刷刷变学霸
举一反三
【单选题】Mr. and Mrs. Black called their landlord ____ about the constant loud music and shouting from their neighbors upstairs. [ ]
A.
to complain
B.
being complained
C.
complained
D.
complaining
【判断题】If a material is subjected to a constant force, it is called dynamic loading.
A.
正确
B.
错误
【单选题】The production function feature called constant returns to scale means that if we:
A.
multiply capital by z1 and labor by z2 , we multiply output by z3
B.
increase capital and labor by 10 percent each, we increase output by 10 percent.
C.
increase capital and labor by 5 percent each, we increase output by 10 percent.
D.
increase capital by 10 percent and increase labor by 5 percent, we increase output by 7.5 percent
【单选题】Assuming that technological progress increases the efficiency of labor at a constant rate is called:
A.
endogenous technological progress.
B.
the efficiency-wage model of economic growth.
C.
labor-augmenting technological progress.
D.
the Golden Rule model of economic growth.
【简答题】苏联时期最大的报纸是（）
【简答题】The practice of maintaining relatively constant dividends is called ________.
【判断题】If the loading of the material is not constant but instead fluctuates, it is called static loading.
A.
正确
B.
错误
【单选题】患者女,58岁。既往有高血压史12年。本次因用力大便突发头痛、偏瘫4小时,伴呕吐2次。查体:血压185/100mmHg,左侧上、下肢肌力0级,肌张力低下,左侧偏身感觉减退。在治疗患者的过程中首要的措施是
A.
降低血压
B.
用中药治疗
C.
应用止血药,阻止脑内继续出血
D.
控制脑水肿,降低颅内压
E.
补充营养
【单选题】在一个由NPN型晶体管构成的放大电路中,关于晶体管三个电极的电位,下列说法正确的是
A.
集电极电位一定最高
B.
集电极电位一定最低
C.
发射极电位一定最高
D.
基极电位一定最低
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