更多“一般认为，人体对电场强度的感知水平是（）。”相关的问题
钨钴钛类比钨钴类硬质合金有较高的硬度和较好的耐磨性及热硬性。
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高速铁路固定设备的临时上道检查、故障抢修作业须在（）内登记，并经列车调度员同意后，方可上道作业。
A.《设备检查记录薄》 B.《行车设备抢修记录薄》 C.《临时抢修检查记录薄》 D.《行车设备检查登记簿》
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If the technological revolution continues to have its effects, there will be fewer and fewer jobs available, particularly to school-leavers and those over the age of fifty. If there are only half the number of jobs in the future, men and women will have to share them. Two people will therefore work only twenty hours each instead of the forty they are currently accustomed to. It is a well-known fact that those who suffer from stress at work are often not high-powered executives but unskilled workers doing boring, repetitive jobs, especially those on production lines. Unemployment often has a similar effect on its victims. If we wish to prevent this type of stress and the depression(沮丧)that frequently follows long periods of it, we will have to find ways of educating people to cope with this sudden increase in leisure time. Many have already turned to pills and tablets to combat sleeplessness and anxiety, two of the symptoms of long-term stress and depression. In America, we spend $ 650 million a year on different kinds of medicines. We swallow a staggering(大得惊人的)three million sleeping tablets every night. Although these 'drugs of the mind' can be extremely useful in cases of crisis, the majority of patients would be better off without them. The boredom and frustration of unemployment are not the only causes of stress: poor housing, family problems, overcrowding and financial worry are all significant factors. Nevertheless, doctors believe that if people learnt to breathe properly, took more exercise, used their leisure time more actively and expressed their anger instead of bottling it up, they would not depend so much on drugs, which treat only the symptoms and not the cause of the stress. If doctors refused prescriptions more often and discouraged patients with minor ailments from visiting the clinic, the country would have more money to spend on improving leisure facilities and adult education, which are at present inadequate in many parts of the country. Moreover, doctors would have more time to spend on those patients in real need of their help. Questions:During which period could British motorists drive without speed limits?A．During 1903 to 1908.B．During 1930 to 1935.C．During 1935 to 1940.D．During 1935 to 1966.
A.DuringB.B．DuringC.C．DuringD.D．DuringE.
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根据现行外汇管理制度，以下货物贸易外汇管理分类等级为（）的企业不得办理离岸转手买卖外汇收支业务。
A.A类
B.B类
C.C类
D.D类
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一些小化妆品瓶在退火时将最后两区循环风机关掉，作用是（）
A.局部加温
B.防止倒瓶
C.保证出窑温度，减少外界冷风入窑
D.起到急冷的作用
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任何一个物流系统都必须考虑（）。
A.服务水平
B.成本
C.利润
D.A和B
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某制鞋厂拥有平均生产条件，资本家雇佣工人50人，工作日为8小时，工人人均4小时生产1双鞋，消耗生产资料价值为22元，每个工人1小时创造新价值2元，劳动力价值8元。(中南财大2008研)计算：每双鞋的价值量。
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死亡赔偿金按照受诉法院所在地上一年度城镇居民人均可支配收入或者农村居民人均纯收入标准，按（）年计算。
A.10
B.15
C.20
D.30
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标志着唐朝由盛转衰的事件是（）。
A.黄巢起义
B.朱温灭唐
C.安史之乱
D.牛李之争
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根据证券登记结算公司深圳分公司的规定，红股上市日、现金股利到达投资者账户日及配股缴款认购起始日为日。(R为股权登记日)
A.R+1 B.R+2 C.R+3 D.R+4
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差动保护电路中，若某侧的电流互感器副边短路，则保护电路将（）。
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藏书在作者来说是：（）
A.好习惯
B.随意为之
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与称为“君主之官”的脏相表里的腑是（）
A.肾
B.肺
C.小肠
D.大肠
E.膀胱
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人体最主要的呼吸器官和泌尿器官分别是（）
A.气管和肾脏 B.肺和膀胱 C.呼吸道和肾单位 D.肺和肾脏
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打开油气层后，井口附近动用电气焊属于（）。
A、一级动火
B、二级动火
C、三级动火
D、四级动火
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