1942年()运动的内容是反对主观主义以整顿学风,反对宗派主义以整顿党风,反对党八股以整顿文风
参考答案:延安整风
If investors expect stable rates of inflation in the future, the pure expectations theory suggests that the yield curve now will be:()
A. flat.
B. inverted.
C. upward-sloping.
输电线路电压在1~2kW,柱架与输电线间的安全距离应为1.5M以上