问题
计算题
某铁的氧化物中，铁、氧两种元素的质量比为7：3，求氧化物的化学式。
答案
Fe2O3
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某铁的氧化物中，铁、氧两种元素的质量比为7：3，求氧化物的化学式。
Fe2O3
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| The poor are very wonderful people. One evening my sisters and I went out and picked up four people from the street. One of them 1 a most terrible condition. I told my sisters,"You 2 the other three．I take care of this one who looks 3 ."So I did for her all that my love can do．I 4 her in bed, and there was such a beautiful smile on her face. She took hold of my hand as she 5 " Thank you"and then she died. I could not help but examined my heart before her. I asked myself 6 would say if I Was in her place．My answer was very simple．I would say I was hungry, cold, homeless, and I was dying, or something else, but she gave me her 7 love. Then she died with a smile on her face． I am going to try to make a home for many people who have no home. Because I believe that love begins at home, and if we can create a home for the poor, I think that 8 love will spread. Through this love we will be able to bring peace to the pooh So let us always meet 9 with a smile, for the smile is the 10 of love, and once we begin to love each other naturally, we will do something for others. | |||
| ( )1. A. were in ( )2. A. look for ( )3. A. worse ( )4. A. gave ( )5. A. spoke ( )6. A. which ( )7. A. grateful ( )8. A. less and less ( )9. A. the others ( )10. A. begin | B. was in B. care about B. stronger B. threw B. told B. what B. careful B. little and little B. the other B. beginning | C. were with C. catch up with C. better C. put C. said C. when C. hopeful C. more and more C. another C. end | D. was with D. care for D. healthier D. pushed D. shouted D. how D. powerful D. fewer and fewer D. each other D. ending |