更多“如果一种物品价格高于均衡价格,则( )。”相关的问题
在25℃时，0.1mol·L -1 某一元弱酸溶液的电离度为0.2%，则此溶液的OH - 浓度为（）mol·L -1 。
A. 2×10 -4B. 1×10 -10C. 5×10 -5D. 5×10 -11
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图示平面机构中，曲柄OA长为OA=15cm，以匀角速度[图]绕...
图示平面机构中，曲柄OA长为OA=15cm，以匀角速度绕轴O转动。杆AB长为AB=20cm，杆BD长为BD=30cm。在图示位置,，，角。 则在图示瞬时，杆AB、BD和O1B的角速度；杆AB、O1B的角加速度分别为（）。A、B、C、D、
图示平面机构中，曲柄OA长为OA=15cm，以匀角速度绕轴O转动。杆AB长为AB=20cm，杆BD长为BD=30cm。在图示位置,，，角。 则在图示瞬时，杆AB、BD和O1B的角速度；杆AB、O1B的角加速度分别为（）。
A、
B、
C、
D、
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“谁在人才上占有优势，谁就能在科技上占领制高点。”这句话表明（） ①科技的发展归根结底靠人才 ②国家综合实力的强弱越来越取决于各类人才质量和数量 ③我国必须大力实施人才强国战略 ④我国已经把沉重的人口压力转化为丰富的人才优势
“谁在人才上占有优势，谁就能在科技上占领制高点。”这句话表明（）
①科技的发展归根结底靠人才
②国家综合实力的强弱越来越取决于各类人才质量和数量
③我国必须大力实施人才强国战略
④我国已经把沉重的人口压力转化为丰富的人才优势
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洛杉矶烟雾事件主要大气污染物是（）
A.烟尘，SO2 B.汽车废气，工业排放的烃类和NOX C.工业有机化工废气 D.工业和生活排出的SO2、CO2和CO
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下列那个不是消费者思维活动过程的步骤？（）
A.比较过程
B.评价过程
C.购买过程
D.分析过程
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肠结核的病理分型是（ ）
A.浅表型 B.增生型 C.息肉型 D.凹陷型 E.溃疡型
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熔融沉积式3D打印技术将材料通过什么方式形成立体模型？（）
A.焊接
B.切削
C.拼插
D.逐层堆积
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第 22 题(本题:1分) 以下选项中非法的C语言字符常量是
A. '\x9d' B. '9' C. '\x09' D. '\09'
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非标西陇海线的工作模式代码为（）。
A . A、025
B . B、026
C . C、027
D . D、028
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The predictability of our mortality rates is something that has long puzzled social scientists. After all, there is no natural reason why 2,500 people should accidentally shoot themselves each year or why 7,000 should drown or 55,000 die in their cars. No one establishes a quota for each type of death. It just happens that they follow a consistent pattern year after year. A few years ago a Canadian psychologist named Gerald Wilde became interested in this phenomenon. He noticed that mortality rates for violent and accidental deaths throughout the western world have remained oddly static throughout the whole of the century, despite all the technological advances and increases in safety standards that have happened in that time. Wilde developed an intriguing theory called "risk homeostasis". According to this theory, people instinctively live with a certain level of risk. When something is made safer, people will get around the measure in some way to reassert the original level of danger. If, for instance, they are required to wear seat belts, they will feel safer and thus will drive a little faster and a little more recklessly, thereby statistically canceling out the benefits that the seat belt confers. Other studies have shown that where an intersection is made safer, the accident rate invariably falls there but rises to a compensating level elsewhere along the same stretch of road. It appears, then, that we have an innate need for danger. In all events, it is becoming clearer and clearer to scientists that the factors influencing our lifespan are far more subtle and complex than had been previously thought. It now appears that if you wish to live a long life, it isn’t simply a matter of adhering to certain precautions..., eating the right foods, not smoking, driving with care. You must also have the right attitude. Scientists at the Duke University Medical Center made a 15-year study of 500 persons personalities and found, somewhat to their surprise, that people with a suspicious or mistrustful nature die prematurely far more often than people with a sunny disposition. Looking on the bright side, it seems, can add years to your life span.
A.have helped solve the problem of so high death rateB.have oddly accounted for mortality rates in the past centuryC.have reduced mortality rates for violent and accidental deathsD.have achieved no effect in bringing down the number of deaths
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取得抵债资产支付的相关税费，是指农商行收取抵债资产程中所缴纳的（）等税金以及所支出的相关直接费用。
A.契税
B.车船使用税
C.印花税
D.房产税
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一般成人输液速度为：（）
A.20~40滴/分
B.30~50滴/分
C.40~60滴/分
D.50~70滴/分
E.60~80滴/分
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区分层积云与高积云的关键是视宽度角，一般情况下，（）。
A.两者视宽度角一样大
B.层积云视宽度角大
C.高积云视宽度角大
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各种荷载标准值是建筑结构按承载力极限状态设计时采用的荷载基本代表值,为其设计基准期内最大荷载统计分布值。
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