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【简答题】
Al和Si，Ge和As在周期表处于金属元素和非金属元素的过渡区域，其单质和化合物在建筑业、电子工业和石油化工等方面应用广泛。请回答下列问题： （1）写出As在周期表中的位置_____________，其价电子的电子排布式为____________________  ； （2）Ge与As，哪种元素的第一电离能大？________原因是______________________； （3）AlCl 3 是化工生产中常用的催化剂，熔点为192.6℃，熔融状态是通过配位键形成二聚体Al 2 Cl 6 ，请画出Al 2 Cl 6 结构图示______________________； （4）超高导热绝缘材料纳密氮化铝（AlN）在绝缘材料中应用广泛，其晶体结构与金刚石类似。则每个Al原子与______个N原子相连，与同一个Al原子相连的N原子构成的空间构型为________。氮化铝（AlN）与金刚砂（SiN）相比，晶体溶沸点较高的是____________，原因是____________________________。 （5）液态SiCl 4 常用作烟雾剂，原因是Si的3d空轨道能与水配位而剧烈水解，在潮湿的空气中发烟，试用化学方程式表示其发烟原理________________________。
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参考答案：
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【简答题】What did Li Ming promise to do?
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【单选题】What did the Sudanese government promise to do?
A.
To reinforce law and order.
B.
To protect the blacks.
C.
To take the weapons away from the Arab militias.
D.
To withdraw government troops.
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从事卷烟批发业务的单位，批发销售的所有牌号规格的卷烟，均按统一税率计算消费税
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卷烟批发环节的消费税采用复合计税
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从事卷烟批发业务的单位向消费者销售卷烟，不缴纳消费税
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批发企业在计算纳税时，可以扣除已含的生产环节的消费税税额
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【单选题】What did the manager promise to do?
A.
to pay the woman a sum of money for compensation.
B.
to have every facility in the bathroom checked and fixed immediately.
C.
to change the room and provide a compensation.
D.
to ask the house keeper to see to the problems right away.
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【单选题】In the Oxfordshire case, what did the college promise?
A.
50% of the students could get their qualifications through the course.
B.
50% of the students would receive quality education.
C.
50% of the students could find a job in the field.
D.
50% of the time would be spent practicing in the field.
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【单选题】What did the woman promise at the second interview?
A.
The students would play violin as well as her sons.
B.
To treat the students in the same way she treated her sons.
C.
To communicate with children’s parents very often.
D.
She would stay in the school permanently.
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【单选题】What did Rochester ask Jane to promise?
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Not to go to Gateshead.
B.
Not to find another job.
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Not to leave him.
D.
Not to be kind to her aunt.
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【判断题】进入办公楼前自觉接受体温检测，体温正常可入楼工作，并到卫生间洗手
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【判断题】进入办公楼前自觉接受体温检测,体温正常可入楼工作。
A.
正确
B.
错误
查看完整题目与答案
【多选题】排样的方式有( )。
A.
有废料排样
B.
少废料排样
C.
无废料排样
D.
多废料排样
查看完整题目与答案
【简答题】What did Li Ming promise to do?
查看完整题目与答案
【单选题】What did the Sudanese government promise to do?
A.
To reinforce law and order.
B.
To protect the blacks.
C.
To take the weapons away from the Arab militias.
D.
To withdraw government troops.
查看完整题目与答案
【多选题】下列关于批发环节消费税的规定中正确的有( )
A.
从事卷烟批发业务的单位，批发销售的所有牌号规格的卷烟，均按统一税率计算消费税
B.
卷烟批发环节的消费税采用复合计税
C.
从事卷烟批发业务的单位向消费者销售卷烟，不缴纳消费税
D.
批发企业在计算纳税时，可以扣除已含的生产环节的消费税税额
查看完整题目与答案
【单选题】What did the manager promise to do?
A.
to pay the woman a sum of money for compensation.
B.
to have every facility in the bathroom checked and fixed immediately.
C.
to change the room and provide a compensation.
D.
to ask the house keeper to see to the problems right away.
查看完整题目与答案
【单选题】In the Oxfordshire case, what did the college promise?
A.
50% of the students could get their qualifications through the course.
B.
50% of the students would receive quality education.
C.
50% of the students could find a job in the field.
D.
50% of the time would be spent practicing in the field.
查看完整题目与答案
【单选题】What did the woman promise at the second interview?
A.
The students would play violin as well as her sons.
B.
To treat the students in the same way she treated her sons.
C.
To communicate with children’s parents very often.
D.
She would stay in the school permanently.
查看完整题目与答案
【单选题】What did Rochester ask Jane to promise?
A.
Not to go to Gateshead.
B.
Not to find another job.
C.
Not to leave him.
D.
Not to be kind to her aunt.
查看完整题目与答案
【判断题】进入办公楼前自觉接受体温检测，体温正常可入楼工作，并到卫生间洗手
A.
正确
B.
错误
查看完整题目与答案
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