A～J分别为九年级化学学过的不同纯净物，它们存在右下图所示的转化关系。已知A为铁锈的主要成分，H的溶液呈蓝色，I为黑色固体，H的相对分子质量是I的两倍。常温下B、D、F、J均为无色气体，其中J是一种有刺激性气味的气体，其水溶液显碱性。（反应②、④的个别生成物已略去）
（1）写出化学式：
E________， I ________，
J 。
（2）W组成中含有阳离子是（填符号）_________ 。
（3）写出反应①和②的化学方程式：
①_______________________________________________
②
In the clinic, I asked if Michael could be retested, so the specialist tested him again. To my ___1___, it was the same score.
Later that evening, I ___2___ told Frank what I had learned that day. After talking it over, we agree that we knew our ___3___ much better than an IQ test. We ___4___ that Michael’s score must have been a ___5___ and we should treat him ___6___ as usual.
We moved to Indiana in 1962, and Michael studied at Concordia High School in the same year. He got ___7___ grades in the school, especially ___8___ biology and chemistry, which was a great comfort.
Michael ___9___ Indiana University in 1965 as a pre-medical student, soon afterwards, his teachers permitted him to take more courses than ___10___. In 1968, he was accepted by the School of Medicine, Yale University.
On graduation day in 1972, Frank and I ___11___ the ceremony at Yale. After the ceremony, we told Michael about the ___12___ IQ score he got when he was six. Since that day, Michael sometimes would look at us and say ___13___, “My dear mom and dad never told me that I couldn’t be a doctor, not until after I graduated from medical school!” It is his special way of thanking us for the ___14___ we had in him.
Interestingly, Michael then ___15___ another IQ test. We went to the same clinic where he had __16___ the test eighteen years before. This time Michael scored 126, an increase of 36 points. A result like that was supposed to be ___17___.
Children often do as ___18___ as what adults, particularly parents and teachers, ___19___ of them. That is, tell a child he is “ ___20___”, and he may play the role of a foolish child.
A．joy B．surprise C．dislike D．disappointment
A．tearfully B．fearfully C．cheerfully D．hopefully
A．student B．son C．friend D．doctor
A．argued B．realized C．decided D．understood
A．specially B．strictly C．naturally D．carefully
A．poor B．good C．average D．standard
A．in B．about C．of D．for
A．visited B．chose C．passed D．entered
A．allowed B．described C．required D．offered
A．missed B．held C．delayed D．attended
A．high B．same C．low D．different
A．curiously B．eagerly C．calmly D．jokingly
A．faith B．interest C．pride D．delight
A．looked for B．asked for C．waited for D．prepared for
A．received B．accepted C．organized D．discussed
A．imperfect B．impossible C．uncertain D．unsatisfactory
A．honestly B．much C．well D．bravely
A．hear B．learn C．expect D．speak
A．wise B．rude C．shy D．stupid
- Mum, I failed to catch the train.
- If you __________ at the station ten minutes earlier, you could have caught it.
| A．arrived | B．had arrived | C．would arrive | D．were to arrive |
The construction of a highway will __________ the growth of the suburbs.
| A．result from | B．lead in | C．contribute to | D．devote to |
Only after Mary read her composition the second time __________ the spelling mistake.
| A．did she notice | B．she noticed |
| C．does she notice | D．she has noticed |
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