向盛有硫酸铜水溶液的试管里加入氨水,首先形成难溶物,继续添加氨水,难溶物溶解得到

题型:不定项选择题

问题:

向盛有硫酸铜水溶液的试管里加入氨水,首先形成难溶物,继续添加氨水,难溶物溶解得到深蓝色的透明溶液。下列对此现象说法正确的是[ ]

A.反应后溶液中不存在任何沉淀,所以反应前后Cu2+的浓度不变

B.沉淀溶解后,将会生成深蓝色的配合离子[Cu(NH3)4]2+

C.向反应后的溶液加入乙醇,溶液将会没有发生变化,因为[Cu(NH3)4]2+不会与乙醇发生反应

D.在[Cu(NH3)4]2+离子中,Cu2+给出孤对电子,NH3提供空轨道

考点:配合物理论
题型:不定项选择题

根据企业破产法律制度的规定,下列关于重整申请人的表述中,正确的是()。

A.进入破产程序前,债务人可以直接向人民法院申请重整

B.人民法院受理破产申请后宣告债务人破产前,破产管理人可以向人民法院申请重整

C.人民法院受理债权人提出的破产申请后宣告债务人破产前,出资额占债务人注册资本5%。以上的出资人,可以向人民法院申请重整

D.人民法院受理债权人提出的破产申请后,债务人不能向人民法院申请重整

题型:不定项选择题

心音减弱常见于

A.二尖瓣狭窄

B.心肌炎

C.心肌梗死

D.休克

E.甲状腺功能亢进

题型:不定项选择题

关于MRI灌注加权成像技术的临床应用,叙述错误的是()

A.用于脑梗死及肝脏病变的早期诊断、肾功能灌注

B.对比剂引起的T1增强效应适用于心脏的灌注分析

C.对比剂引起的T2增强效应适用于肝脏的灌注分析

D.定量研究还需获得供血动脉内的对比剂浓度变化、Gd-DTPA的组织与血液的分配系数等

E.目前,磁共振Gd-DTPA灌注成像是半定量分析

题型:不定项选择题

评价包括形成评价、过程评价和效果评价。

根据项目目标和计划设计,系统地考察项目的执行过程,并作出结论的评价是()。

A.过程评价

B.形成评价

C.效果评价

D.早期评价

E.结果评价

题型:不定项选择题

I will never forget the year I was about twelve years old. My mother told us that we would not be (16) Christmas gifts because there was not enough money. I felt sad and thought, "What would I say when the other kids asked what I’ d (17) " Just when I started to (18) that there would not be a Christmas that year, three women (19) at our house with gifts for all of us. For me they brought a doll. I felt such a sense of (20) that I would no longer have to be embarrassed when I returned to school. I wasn’t (21) . Somebody had thought (22) of me to bring me a gift.

Years later, when I stood in the kitchen of my new house, thinking how I wanted to make my (23) Christmas there special and memorable, I (24) remembered the women’s visit. I decided that I wanted to create that same feeling of (25) for as many children as I could possibly reach.

So I (26) a plan and gathered forty people from my company to help. We gathered about 125 orphans (孤儿) at the Christmas party. For every child, we wrapped colorful packages filled with

toys, clothes, and school supplies, (27) with a child’ s name. We wanted all of them to know they were (28) Before I called out their names and handed them their gifts, I (29) them that they couldn’t open their presents (30) every child had come forward. Finally the (31) they had been waiting for came as I called out, "One, two, three. Open your presents!" As the children opened their packages, their faces beamed and their bright smiles (32) up the room. The (33) in the room was obvious, and (34) wasn’ t just about toys. It was a feeling, and the feeling I knew (35) that Christmas so long ago when the women came to visit. I wasn’t forgotten. Somebody thought of me. I matter.

27()

A.none 

B.few 

C.some 

D.each

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