【多选题】中共“七大”的重大意义在于()
D.
为抗日战争和新民主主义革命的胜利作了重要准备
【单选题】中共七大在党的历史上具有重大意义,其中表述不准确的是()
D.
为抗日战争和新民主主义革命的胜利做了重要准备
【单选题】一定温度下,在2 L密闭容器中发生下列反应:4NO 2 (g)+O 2 (g) 2N 2 O 5 (g);已知该反应的平衡常数:K 300 ℃ >K 350 ℃ ,且n(NO 2 )(单位:mol)随时间变化如下表: 时间(s) 0 500 1000 1500 t 1 ℃ 20 13.96 10.08 10.08 t 2 ℃ 20 a b c 下列说法一定正确的是( )
B.
如果t 2 ℃<t 1 ℃,那么a>b=c,且a=10+0.5b
C.
如果t 2 ℃<t 1 ℃,那么t 2 ℃达到平衡的时间介于1 000 s至1 500 s之间
D.
如果t 2 ℃>t 1 ℃,那么b>10.08
【判断题】人际交往的适度原则是单指交往的时间要适度和交往的距离要适度。
【单选题】Direct regulation of business has the potential to yield economic benefits to society when:
A.
barriers to entry are absent.
B.
there are no good substitutes for a product.
C.
many firms serve a given market.
D.
smaller firms are most efficient.
【单选题】A new regulation issued recently by the State Economic and Trade Commission (SETC) is expected to help improve management of investments and increase asset ( ).国家经贸委颁布的新规定有望能改善投资管理机制和提高资产效率。
【多选题】中共七大在党的历史上具有重大意义,其中表述准确的是( )。
D.
为抗日战争和新民主主义革命的胜利做了重要准备
【判断题】Monetary policy consists of regulation and control over the growth of money and credit in an attempt to pursue broad economic goals such as full employment, reduction of inflation, and sustainable eco...