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问题 问答题 简答题

如何停止真空滤油机？

答案

参考答案：

（1）、当油处理完毕或中途停止运行时，先停加热器，将控温旋钮定在非工作位置，继续进油3~5分钟后，关闭进油阀门。

（2）、停真空泵，待真空罐内排油完毕，停下油泵。

（3）、打开冷却器下端阀门，放掉里面的残油或水，注意放后要关阀门，以便下次使用。

（4）、若遇紧急情况，则可按下紧急停机按钮，机器就没有通电（这时应同时关闭进油阀，以防进油太多）；如果开机，必须按顺时针旋转紧急停机按钮，方能开启一切控制按钮。

单项选择题

German Chancellor Angela Merkel won over German voters in the Federal Election on Sept. 27. Can she now be won over by a French charm offensive (1) at repairing the relationship that was once at the heart of Europe That’s the question being asked in Paris, (2) top government officials are (3) talking about their desire to rekindle closer ties (4) their neighbors across the Rhine. (5) the end of World War II the Franco-German relationship has been the motor of European integration, the (6) force behind the creation of the European Union and, more recently, the introduction of the euro. But the ardor has (7) in this decade, particularly under Merkel, who has regularly struggled to (8) her irritation with French President Nicolas Sarkozy’s grandstanding. Sarkozy, (9) , has often been impatient with what he (10) Merkel’s lack of resolve.

The sometimes (11) personal rapport is a long way from the public shows of affection their predecessors staged, particularly Helmut Kohl and FranCois Mitterrand, who movingly held (12) in 1984 in a Verdun cemetery. There’s been tension on (13) , too. Charles Grant, director of the London-based think tank Centre for European Reform, points out that France and Germany have been (14) on issues from how best to reflate their economies during the economic (15) to the smartest strategies for dealing with Russia.

But influential movers in France are now (16) to put the relationship back on a friendlier footing. In a recent paper French think tank Institute Montaigne (17) an ambitious agenda for the two nations, (18) that a new impetus is needed if Europe’s voice is to be heard in a world (19) of big new players, such as Brazil and India, and at a time when President Obama seems fax more (20) with China and the rest of Asia than with America’s traditional allies in Europe.

5（）

A.Since

B.Before

C.At

D.For
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单项选择题 A1/A2型题

通过噬菌体将耐药基因转移，称为（）

A.转化

B.转导

C.转移

D.转接

E.转嫁
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