There are conflicting accounts of what happened. The Israeli army says its troops came under sniper fire during a routine operation on Israel's side of the frontier.
VOA: standard.2010.08.03
He has this whole group of people out somewhere on the American frontier and they're a kind of a cult.
他描写了来自于美国边界某处的一群人,他们是一群狂热分子
What I have up there on the diagram are calculations I made for the efficient portfolio frontier with three assets.
上面的图形是我已经算好的,三种资产的有效投资组合边界。
On Friday,officials banned rallies in the North West Frontier Province, expanding prohibitions that have largely succeeded in stopping long vehicle convoys making their way to the capital.
VOA: standard.2009.03.13
the battle took place over some land that was being contested on a frontier and they would go down to that area and pick a spot and there they would go and fight with one another.
战争爆发是为了争夺国境线上的争议地区,他们会到那个地区,挑好地方,然后在那里大打出手
That means that you want to pick, ultimately, a point on this-- this line is tangent to the efficient portfolio frontier with all the other assets in it.
那意味着你会最终会在这上面选一个点-,这条直线是与有效边界相切的,后者包含了所有的资产组合。
Where are they on the efficient portfolio frontier?
那运用有效边界分析会如何呢?
Where are we on this frontier regarding oil in the United States?
考虑到美国拥有的石油的话我们又在哪呢?
If we want to add that asset to the portfolio, what it does is it produces an efficient portfolio frontier that is now a straight line; I show that on the diagram.
如果我们将其加入到投资组合中去,则会生成一条资产组合的有效边界,即一条直线;,我在图里把它画出来了。
If there were no credit markets, everyone would have to be on the production possibility frontier; there would be no other choice.
如果没有信贷市场,每个人的收入水平都会落在PPF曲线上,别无选择
Irving Fisher also drew on the curve a production possibility frontier for society, which he made downward-curved.
欧文·费雪还画了一条曲线,代表了社会的生产可能性边界PPF,这是一条向下的曲线
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