搜题请搜索小程序“爱下问搜题”
问题 问答题

月经先后无定期的诊断要点是什么

答案

参考答案：

解析：月经先后无定期的诊断要点为：月经周期不固定，时或提前，时或延后七天以上，并连续出现三个月经周期以上者，可诊断为本病。

单项选择题

对于受精卵的发育、运行及着床，恰当的是（）

A.受精后的第8天进入宫腔，第10天开始植入

B.精子获能是精子通过女性生殖道时接触子宫内膜白细胞，而解除顶体酶上的去获能因子

C.卵子受精发生于输卵管的峡部

D.受精后第5天受精卵分裂成为实心细胞团的桑葚胚

E.受精卵着床时透明带尚未消失
查看答案
问答题

If Asian policy makers have a grand vision, it is that someday people from Japan and China to Malaysia and Myanmar will pay for groceries using the same currency. The idea of a single East Asian currency will be debated this week at the Asian Development Bank’s annual meeting in the South Korean resort island of Jeju, where a European Central Bank board member, Tommaso Padoa-Schioppa, will share with Asian finance ministers "lessons" from a 50-year journey that has led to 12 European nations sharing the euro. Should the countries of East Asia aim for their own "Asian dollar"？ The rationale for a single currency is simple. For exporters in one Asian country selling to importers in another, being bald in Asian dollars would mean their profits were protected no matter what happened to the U. S. currency. Consumers would benefit from easier price comparisons, and travelers would save money by not having to change their currency from country to country. East Asia is home to a third of the world’s population and is its fastest-growing region. The World Bank estimates that East Asian economies will collectively expand 6.3 percent this year. The region’s central banks hold $ 2 trillion of foreign currency reserves, which, if pooled, would make an Asian dollar a tough target for currency speculators to pull down. A single East Asian currency would require an accord similar to the European Union’s Stability and Growth pact, which would require governments to live within their means — a tall order for countries such as the Philippines that are plagued by chronic budget deficits. Monetary cooperation could eventually lead to a single currency. Still, if East Asia wants to follow Europe, it must speed up efforts for freer movement of goods and people across national boundaries. Then will come the painful part: trying to get Asian states to accept a unifying agency along the lines of the European Central Bank. The Asian dollar may not be here soon. But to say it will never arrive is to underestimate the power of progress.
查看答案