实验室有三瓶没有标签的固体,分别是CuO、CaO、CaCO3,只用一种生活中每天

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问题:

实验室有三瓶没有标签的固体,分别是CuO、CaO、CaCO3,只用一种生活中每天必需用到的物质,设计一个实验方案进行鉴别,并完成实验报告.

实验步骤实验现象与结论
1、 
2、 

考点:物质的鉴别物理性质和化学性质的区别和应用物质的推断
题型:问答题

One day an Indian went to see his doctor. The doctor looked him over and said, “Medicine won’t help you. You must have a good rest. Go to a quiet country place for a month, go to bed early, drink milk, walk a lot, and smoke only one cigar(雪茄) a day.”

A month later, the Indian came to see the doctor again. “How are you?” said the doctor. “I’m glad to see you again. You look much younger.” “Oh, doctor, I feel quite well now,” said the Indian, “I had a good rest. I went to bed early. I drank a lot of milk. I walked a lot. You certainly helped me. But you told me to smoke one cigar a day, and that almost(几乎) killed me at first. It was not easy to begin smoking at my age.”

小题1:One day an Indian________________.          .

A.went to see a friend

B.felt very tired

C.wasn’t feeling well

D.went to help his doctor小题2:His doctor_______.          .

A.could not help him

B.told him what to do

C.was good to him

D.was glad to see him小题3:When the Indian came to see the doctor again,_________.          .

A.the Indian felt quite well

B.the doctor wasn’t free

C.the Indian was younger

D.the doctor looked him over again小题4:The Indian told the doctor,__________.         .

A.he liked doing all those things

B.he almost killed him

C.to smoke one cigar a day

D.one cigar a day was very difficult at the beginning小题5:From the story we can guess          .

A.the Indian was a young man

B.the doctor was a good doctor

C.the Indian would go on smoking

D.the doctor wasn’t very careful

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以毛 * * 为代表的中 * * 党人探索了一条有中国特色的革命道路;以邓 * * 为首的中 * * 党人开创了一条有中国特色的社会主义建设道路。二者根本的共同点是   [ ]

A、坚定不移的走社会主义道路

B、始终不渝的贯彻党的最高纲领

C、把反“左”作为革命进程的重要任务

D、实事求是,从中国的国情出发

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0.000205=______(用科学记数法表示).

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在国际单位制中,时间的单位是______,长度单位是______.测量时间的基本工具是______.

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被称为"生血之源"的脏是()

A.肾

B.肺

C.脾

D.心

E.肝

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