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【简答题】
Our tragedy today is a general and universal physical fear so long sustained by now that we can even bear it. There are no longer problems of the spirit. There is only the question: when will I be blown up? Because of this, the young man or woman writing today has forgotten the problems of the human heart in conflict with itself which alone can make good writing because only that is worth writing about, worth the agony and sweat. He must learn them again. He must teach himself that the basest of all things is to be afraid; and, teaching himself that, forget it forever, leaving no room in his workshop for anything but the old verities and truths of the heart, the old universal truths lacking which any story is ephemeral and doomed, love and honor and pity and pride and compassion and sacrifice. Until he does so he labors under a curse. He writes not of love but of lust, of defeat in which nobody loses anything of value, of victories without hope and worst of all without pity, or compassion. He writes not of the heart but of the glands. Until he relearns these things he will write as though he stood among and watched the end of man. I decline to accept the end of man. It is easy enough to say that man is immortal simply because he will endure; that when the last ding-dong of doom has changed and faded from the last worthless rock hanging tideless in the last red and dying evening, that even then there will still be one more sound: that of his puny inexhaustible voice, still talking. I refuse to accept this. I believe that man will not merely endure: he will prevail. He is immortal, not because he alone among creatures has an inexhaustible voice, but because he has a soul, a spirit capable of compassion and sacrifice and endurance. The poet's, the writer's duty is to write about these things. It is his privilege to help man endure by lifting his heart, by reminding him of the courage and honor and hope and pride and compassion and pity and sacrifice which have been the glory of his past. The poet's voice need not merely be the record of man, it can be one of the props, the pillars to help him endure and prevail.
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【单选题】按完全成本法计算确定的产品单位成本要比按变动成本法确定的相应数值( )。
A.
B.
C.
相等
D.
不一定
【单选题】按完全成本法计算确定的产品单位成本要比按变动成本法确定的相应数值( )
A.
高或相等
B.
C.
相等
D.
不一定
【简答题】一台并励直流电动机在额定电压U N =220伏和额定电流I N =80安的情况下运行,15°C时的电枢电阻Ra=0.08欧,2△Us=2伏,励磁绕组的电阻R f =88.8欧,额定负载时的效率η N =0.85,试求: ①额定输入功率; ②励磁回路铜耗; ③额定输出功率; ④总损耗; ⑤电枢回路铜耗; ⑥附加损耗; ⑦电刷接触电阻损耗; ⑧机械损耗与铁耗之和。
【单选题】按完全成本法计算确定的产品单位成本要比按变动成本法确定的相应数值
A.
高或相等
B.
C.
相等
D.
不确定
【单选题】某居家养老服务中心的社会工作者希望通过问卷调查了解老年人的社会支持网络情况。问卷问题设计中应避免出现“双重含义”,下列问题中具有“双重含义”的是
A.
的性别?1男2女
B.
的亲戚和朋友多吗?(1)很多(2)较多(3)一般(4)较少(5)很少
C.
心情烦闷时,您最喜欢找谁聊天?(1)家人(2)过去同事(3)社会工作者(4)邻居(5)其他
D.
是否接受过志愿者的帮助?(1)是(2)否
【单选题】某居家养老服务中心的社会工作者希望通过问卷调查了解老年人的社会支持网络情况。问卷问题设计中应避免出现“双重含义”.下列问题中具有“双重含义”的是( )。
A.
您的性别?(1)男(2)女
B.
您的亲戚和朋友多吗?(1)很多(2)较多(3)一般(4)较少(5)很少
C.
当心情烦闷时,您最喜欢找谁聊天?(1)家人(2)过去同事(3)社会工作者(4)邻居(5)其他(请说明)
D.
您是否接受过志愿者的帮助?(1)是(2)否
【单选题】万能角度尺按其游标读书值可分为()
A.
2'和8'
B.
5'和8'
C.
2'和5'
D.
2'和6'
【简答题】一台串励直流电动机,额定电压U N =110V,电枢回路总电阻R a =0.1Ω(包括电刷接触电阻和串励绕组电阻)。该电动机在某负载下运行时,电枢电流I a =40A,转速n=1000r/min。现在负载转矩增加到原来的4倍,求电动机的电枢电流和转速(假设磁路不饱和并不计空载转矩)。
【单选题】万能角度尺按其游标读书值可分为2’和( )两种。
A.
4’
B.
8’
C.
6’
D.
5’
【简答题】某一并励直流电动机:P N =5.5千瓦,U N =110伏,I N =58安,n N =1470转/分。电枢回路总电阻Ra=0.15欧,励磁回路总电阻R f =110欧。在满载运行时,电网电压突然下降到100伏,如总负载转矩保持不变,假定磁路不饱和,并忽略电路中的电感和电枢反应,求:⑴开始瞬间的电枢电流;⑵稳定后的电枢电流;⑶稳定后的转速。
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