炼钢反应主要是元素的氧化反应,影响元素氧化顺序的主要因素有()、氧化物能否生成稳定化

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问题:

炼钢反应主要是元素的氧化反应,影响元素氧化顺序的主要因素有()、氧化物能否生成稳定化合物、金属中元素浓度。

考点:炼钢工炼钢工题库
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根据短文内容填入适当的单词,使短文的意思完整,每格限填写一个英语单词,要求开头第一个字母与所给的字母相同。在填写答案时,单词开头的第一个字母要写出来。

Dear Tom, 

      Are you surprised to hear from me? I have not heard from you s   1     the beginning of the summer h   2   .

How are you getting on with your s    3    ? How are your parents? Is your brother Bill b   4    f    5     Canada

yet?

      My stamp collection (集邮) is g   6     bigger and bigger. I have collected stamps of more than forty d   7    

countries. In my stamp books, I usually put the stamps from each country together. I have got a pen-friend

from Britain. She gave me some B   8    stamps. My American teacher has given me some beautiful American

and Canadian stamps. I'm glad to know you are going to give me some foreign stamps, but I still have not r   9   

the stamps of Nepal which you said to p   10    me. Have you sent them off yet?

      Please write to me soon. 

                                                                                                                                            Yours,

                                                                                                                                            Zhou Wen

1.                2.                 3.                 4.                  5.                

6.                7.                 8.                 9.                  10.             

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一艘船每小时行12.5千米,42小时到达目的地,如果每小时行15千米,可以提前几小时到达?

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下列关于合金的叙述:①合金中至少含有两种金属;②合金中的元素以化合物的形式存在;③合金中一定含金属;④合金一定是混合物;⑤铁锈是一种合金.其中正确的是(  )

A.①②

B.③④

C.只有③

D.②③⑤

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土地既存在折旧现象,又存在增值现象。

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铁路行车房舍内和办理行车工作的有关人员均应备有钟表。钟表的时刻应与()的时钟校对。

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