有下列离子晶体空间结构示意图:●为阳离子,o为阴离子。以M代表阳离子,N代表阴离

题型:选择题

问题:

有下列离子晶体空间结构示意图:●为阳离子,o为阴离子。以M代表阳离子,N代表阴离子,化学式为 MN2的晶体结构为 [ ]

A.

B.

C.

D.

考点:晶胞
题型:选择题

药品零售企业

A.必须建立真实、完整的药品购销记录

B.必须建立真实、完整的药品购进记录

C.凭医师处方向消费者出售处方药

D.严禁无《药品经营许可证》的单位或个人开办

E.与无许可证的单位或个人以及城镇个体行医人员、个体诊所进行药品购销活动

题型:选择题

市场经济中的企业犹如社会中的人,有生必有死,有死方知生。实行企业破产制度,是市场经济条件下企业竞争的必然结果,也是增强我国企业竞争力的现实需要。“有死方知生”说明企业破产[ ]

A.可以强化企业的风险意识

B.导致的失业必然引发社会不稳定

C.有利于减轻国家财政负担

D.会侵犯破产企业职工的正当权益

题型:选择题

One cold January evening in Philadelphia, Pennsylvania, America, I went with my father on an oil burner service call. My father was in his forties at that time and I was about twelve years old. He was always working hard trying to support us seven kids. I enjoyed hanging out with him whenever I could — he taught me so much.

We arrived at the call and after walking over snow and ice, we knocked on the customer’s door. A senior citizen opened the door and let us into her very cold home. She was wearing an old, worn-out brown coat that went down to her knees. On her head, covering her gray hair, was an old and worn hat. The home wasn’t furnished very well and was quite dark, except for a single light bulb over the dining room table. Below the light was an older man counting change from several old coffee cans. He looked up at us as we passed by to get to the kitchen where my dad would fix the oil burner. He didn’t say anything. He just looked up at us. He couldn’t speak English, nor could his wife. She only pointed to the kitchen and smiled at us.

After a short while, my father had the heater up and running, and it began to heat their cold home. The lady asked my dad in poor English how much she owed him for fixing the heater. My dad looked around the house and said that he had to go out to the truck and write the bill.

Once in the truck he marked the bill “no answer at home, no charge”, so they wouldn’t be charged for his work. He looked over at me and said, “He was counting his change to pay me. They need their money more than I do.”

As usual, my father taught me something important that time, which was to be kind to the poor.

小题1:According to Paragraph 1, we know that the writer’s father                        .

A.often taught the writer how to work

B.worked several jobs at the same time

C.had a very big family to support

D.brought up his children alone小题2:The description in Paragraph 2 shows that the old couple                        .

A.had no job

B.led a very poor life

C.didn’t know how to save money

D.were not very friendly to strangers小题3:What can we infer from the passage?

A.The old couple had no children in America.

B.The old man didn’t plan to pay money.

C.The old woman felt very embarrassed all the time.

D.The old couple were not native Americans.小题4:The writer’s father didn’t charge for his work because                         .

A.he didn’t need that money

B.he felt pity for the old couple

C.he was not satisfied with his work

D.he wanted to set a good example to others

题型:选择题

会展市场信息资料的分组编码法的优点是()。

A、追加分类容易

B、留有备用代码

C、适于分类

D、方法简单

题型:选择题

关于先天性无 * * 的描述,正确的是()

A.为副中肾管衍化物融合障碍所致异常

B.按照解剖学特点分为 * * 下端闭锁和 * * 完全闭锁

C.患者体格、第二性征、外阴发育异常

D.无子宫

E.卵巢一般异常

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