问题
多项选择题
截止目前，云导风产品在天气分析和预报中的应用包括：（）
A.对流层上部环流形势与我国主要雨带位置的关系（环流形势）
B.台风/热带气旋发展分析：热带气旋是发展还是不发展，与对流层上部的环流型密切相关
C.对流层上部槽脊辐合体对副热带高压的指示意义
答案
参考答案：A, B, C
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截止目前，云导风产品在天气分析和预报中的应用包括：（）
A.对流层上部环流形势与我国主要雨带位置的关系（环流形势）
B.台风/热带气旋发展分析：热带气旋是发展还是不发展，与对流层上部的环流型密切相关
C.对流层上部槽脊辐合体对副热带高压的指示意义
参考答案：A, B, C
最近雾霾天气肆虐我国大部分地区。其中SO2是造成空气的污染的主要原因，利用钠碱循环法可除去SO2。
（1）钠碱循环法中，吸收液为Na2SO3溶液，该反应的离子方程式是________。
（2）已知H2SO3的电离常数为K1＝1.54×10－2，K2＝1.024×10－7；H2CO3的电离常数为K1＝4.30×10－7，K2＝5.60×10－11，则下列微粒可以大量共存的是______（填序号）。
A.CO32－ HSO3－ B. HCO3－ HSO3－ C. SO32－ HCO3－ D. H2SO3 HCO3－
（3）吸收液吸收SO2的过程中，pH随n(SO32－):n(HSO3－)变化关系如下表：
| n(SO32－):n(HSO3－) | 91:9 | 1:1 | 1:91 |
| pH | 8.2 | 7.2 | 6.2 |
①根据上表判断NaHSO3溶液显_______性，试解释原因__________________________；
②在NaHSO3溶液中离子浓度关系不正确的是_______（填序号）。
A．c(Na+)＝2c(SO32-)+c(HSO3-)
B．c(Na+)＞c(HSO3-)＞c(H+)＞c(SO32-)＞c(OH-)
C．c(H2SO3)+ c(H+)＝c(SO32-)+c(OH-)
D．c(Na+)+ c(H+)＝2c(SO32-)+ c(HSO3-)+ c(OH-)
（4）当吸收液的pH降至约为6时，需送至电解槽处理，直至得到pH＞8的吸收液再循环利用，电解示意图如下：
①写出阳极上发生的电极反应式____________；
②当电极上有1mol电子转移时阴极产物的质量为__________。
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| The school was across the street from our home and I would often watch the kids as they played during the break.She seemed so small as she pushed her way __1__ the crowd of boys on the playground.She __2__ from them all. I began to notice her at other times, basketball in hand, playing __3__.She would practice dribbling (运球) and shooting over and over again, sometimes until __4__.One day I asked her __5__ she practiced so much.She looked __6__ in my eyes and without a moment of hesitation she said, "I want to go to college. The only way I can __7__ is that if I get a scholarship, I am going to play college basketball.I want to be __8__.My Daddy told me if the dream is big enough, the facts don't count." Well, I had to give it in to her-she was __9__.One day in her senior year, I saw her sitting in the grass, head __10__ in her arms.I walked toward her and quietly asked what was __11__."Oh, nothing," came a soft reply."I'm just too short." The coach told her that at her height she would probably __12__ get to play for a top ranked team, __13__ offered a scholarship.So she __14__ stop dreaming about college. She was __15__ and I sensed her disappointment.I asked her if she had talked to her dad about it yet.She told me that her father said those coaches were wrong.They just didn't __16__ the power of a dream.He told her __17__ she really wanted to play for a good college, if she truly wanted a scholarship, __18__ could stop her except one thing-her own attitude.He told her again,"if the dream is big enough, the facts don't count." The next year, as she and her team went to the Northern California Championship Game, s  he was seen by a college recruiter (招聘人员). She was indeed offered a __19__.She was going to get the college education that she had __20__ and worked toward for all those years. | ||||
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