【简答题】货币中性(monetary neutrality)
【单选题】Monetary neutrality means that a change in the money supply ( )
A.
does not change real variables. Most economists think this is a good description of the economy in both the short run and in the long run.
B.
does not change real variables. Most economists think this is a good description of the economy in the long run but not the short run.
C.
does not change nominal variables. Most economists think this is a good description of the economy in the short-run and the long run.
D.
does not change nominal variables. Most economists think this is a good description of the economy in the long run but not the short run.
【单选题】下列各项有关病毒性肝炎的叙述中,哪一项是正确的
【单选题】Monetary neutrality is a characteristic of the aggregate demand朼ggregate supply model in:
A.
both the short run and the long run.
B.
in neither the short run nor the long run.
C.
in the short run, but not in the long run.
D.
in the long run, but not in the short run.
【单选题】三层厚度相等的土层组成的水平地基,其渗透系数分别为:k1=1×10-6cm/s, k2=1×10-4cm/s,k3=1×10-2cm/s,其竖直方向的等效渗透系数kz最接近于( )。
【单选题】描述某种对流换热的准则方程形式为 Nu f =0.023Re f 0.8 Pr f b ,则该对流换热是
【单选题】如图所示,某水库的一段库岸存在邻谷渗漏,渗漏带宽1200m。两谷间的距离为600m,两谷间岩土体的渗透系数为8×10 -2 cm/s,透水层底板高程为120m,邻谷水位高程为200m,水库正常蓄水位高程为280m。这段库岸的渗漏量约为()m 3 /s。
【判断题】The irrelevance of monetary changes for real variables is called monetary neutrality. Most economists accept monetary neutrality as a good description of the economy in the long run, but not the short...
【单选题】某水库的一段库岸存在邻谷渗漏,两谷间的距离为800m,两谷间岩土体的渗透系数为3×10 -2 cm/s,透水层底板高程为120m,邻谷水位高程为200m,水库正常蓄水位高程为280m。这段库岸的单宽渗漏量约为()m 3 /(d·m)。
【单选题】某土样采用南55型渗透仪在试验室进行渗透系数试验,试样高度为2.0cm,面积30cm2,试样水头40cm,渗透水量为每24h160cm3,该土样的渗透系数最接近()。