问题 问答题 简答题

千家万户养蚕时的蚕种怎么会统一孵化的?

答案

参考答案:

农村的养蚕,要按预定的日期统一开始。这要在此事先经过三个步骤的操作:(1)冷库操作,先将在冷库越冬休眠的蚕种,经过浸酸处理进行活化;(2)催青操作。将从冷库领回的所有蚕种,放到一个叫催青室的专用生产设施(1县1座),给以最适合胚胎发育的温度、湿度、光线、空气等环境条件保护。催青室以计算机程控的空气动力送温送湿,使数万张种的每1张都均衡发育到卵色转青。经过这样7-10天催青方能发种到户;(3)农户操作。高温多湿黑暗保护2天,第3天清晨统一开灯感光刺激,一般孵化率高达98%。这些操作,不仅使群体发育齐一,农民养蚕也大为省力。

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These are hard times for Deutsehe Bank, despite its huge strides in investment banking. Next week its chief executive, Josef Ackerman, goes on trial in Dusseldorf. Careless words by Rolf Breuer, the head of its supervisory board, led to another court ruling last month that may cost Germany’ s biggest bank several hundred million euros in damages. Then there is Parmalat. Although no evidence has emerged of complicity in the Italian dairy group’ s fraud, Deutsche’ s name has become entwined in the affair.

In many other respects, however, Deutsche’ s reputation has never been higher. In dubbing it " Bank of the Year 2003", International Financing Review, the capital markets’ favorite newssheet, purred that Deutsche was a "lean, aggressive, focused universal bank" In the league tables that investment banks watch so keenly, Deutsche excelled last year as lead manager of bonds and convertible bonds and of some racier products, such as repackaged debt securities and high-yield "junk" bonds. In other disciplines it rarely fell below the top ten in the world.

However, it is still nowhere near the top in equity offerings and advice on mergers and acquisitions, except in Germany. It still has a problem with costs,which were a fat 82% of income in the third quarter of 2003, thanks mainly to the thick pay packets of its investment bankers and its poor returns from corporate and retail banking.

Mr. Ackermann must try to improve the weak spots while spending two clays a week, probably until June, in a courtroom. He and four others face charges of "breach of trust" over the way bonuses were awarded to board meinbers of Mannesmann, a telecoms company. Mr. Aekermann sat on Mannesmann’ s supervisory board. There is no suggestion that he gained personally. Nor was there any harmful intent in Mr. Breuer’ s remarks in a television interview about the financial health of the Kirch media group shortly before its bankruptcy. But he was careless, and a Munich court found Deutsche (but not Mr. Breuer) liable for damages, to be set in due course, without right of appeal. The bank said this week it has lodged a protest with the federal supreme court in Karlsruhe. Meanwhile, Kirch has filed a suit against Deutsche in America.

Deutsche’s involvement with Parmalat also looks sloppy. It led a 350m bond issue fur the group in September. It was also a leading borrower and lender of Parma[at shares, so that in November it technically held the voting rights to over 5% of Parmalat stock. That stake had fallen to 1.5% by December 19th, the day the dairy company’s black hole became public. It reported this, perhaps over-zealously, to the Italian authorities. That may have given the wrong impression, say, sources close to the bank, because the transactions were for third parties.

This is awkward for a bank that managed to avoid most serious attacks on conflicts of interest thai beset the investment-banking industry following the collapse of Enron in 2001 and the bursting of the tech-stock bubble. Mr. Ackermann will need a clear head to steer the bank through the coming storms.

According to the fourth paragraph, which of the following is true()

A. Mr. Ackermann and others are accused of committing bribery

B. No evidence shows that Mr. Aekermann gains bonuses privately from Mannesmann

C. The awkward role it played in the collapse of Enron

D. Mr. Breuer has to pay tore the damage for his remarks in a television interview