油品的导电率在（）的范围内易产生静电.A.10--20Ω B.100---1000Ω_爱下问搜题

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问题单项选择题

油品的导电率在（）的范围内易产生静电.

A.10--20Ω

B.100---1000Ω

C.10---100Ω

答案

参考答案：B

解答题

2x²-6x-7=0（配方法解）

完形填空

The Voice of America began during the World WarⅡ, when Germany was broadcasting a radio program to get international   36 . American officials believed they should   37   the German broadcast with words that they thought were the facts of world events. The first VOA news report began with words in   38 . “The   39  may be good or bad, but we shall tell you the truth.” Within a week, other VOA   40  were broadcasting in Italian, French and English.
After the World War Ⅱended in 1945, some Americans felt VOA’s   41  had to be changed, 42  the Soviet Union（苏联）became enemy of America. They wanted to   43  Soviet listeners. Then VOA began broadcasting in Russian.
In the early days VOA began adding something new to its Broadcast that was   44     “Music USA”. Another new idea came along in 1959. VOA knew that many listeners did not know _ 45  English to completely understand its   46  English broadcast. So VOA   47  a simpler kind of English,   48  uses about 1,500 words and is spoken   49 . Of course, it is special English.
In the   50  of most VOA listeners, the most   51  program is the news report. News from around the world   52  into the VOA news room in Washington 24 hours a day. It comes from VOA reporters in   53  cities and also from other   54  like BBC. VOA writers and editors use these materials to   55  news reports, which are being broadcast in 43 languages.

D．information

B．considering

D．in order that