选择下列实验方法分离物质,将分离方法的序号填在横线上. A.萃取分液法 B.加热分

题型:填空题

问题:

选择下列实验方法分离物质,将分离方法的序号填在横线上.

A.萃取分液法   B.加热分解   C.结晶法   D.分液法  E.渗析法   F.蒸馏法   G.过滤法

(1)______分离饱和食盐水和沙子的混合物.

(2)______从硝酸钾和氯化钠的混合溶液中获得硝酸钾.

(3)______分离水和煤油的混合物.

(4)______分离水和酒精.

(5)______分离溴水中的溴和水.

考点:物质的分离
题型:填空题

南宋后期的诗论家严诩在《沧浪诗话?诗评》中说:“或问唐诗何以胜我朝?唐以诗取士,故多专门之学,我朝之诗所以不及也。”严诩以为唐朝诗歌繁荣的原因是唐朝[ ]

A.经济繁荣,国力强盛

B.科举制度,考查诗赋

C.知识分子队伍空前强大

D.士人群体的刻苦钻研

题型:填空题

急性胰腺炎,排除乙醇、病毒感染、药物病因时,B型超声未见胆、胰管异常,为明确病因,应行下列检查()。

A.检测血三酰甘油

B.检测血钙

C.上腹部增强CT

D.EUS

E.MRCP

题型:填空题

Many years ago, when I was fresh out of school and working in Denver, I was driving to my parents' home in Missouri for Christmas. I stopped at a gas station(加油站)about 50 miles from Oklahoma City, where I was planning to stop and visit a friend. While I was standing in line at the cash register(收款台), I said hello to an older couple who were also paying for gas.

I took off, but had gone only a few miles when black smoke poured from the back of my car. I stopped and wondered what I should do. A car pulled up behind me. It was the couple I had spoken to at the gas station. They said they would take me to my friend's. We chatted on the way into the city, and when I got out of the car, the husband gave me his business card.

I wrote him and his wife a thank-you note for helping me. Soon afterward, I received a Christmas present from them. Their note that came with it said that helping me had made their holidays meaningful.

Years later, I drove to a meeting in a nearby town in the morning. In late afternoon I returned to my car and found that I'd left the lights on all day, and the battery(电池)was dead. Then I noticed that the Friendly Ford dealership - a shop selling cars - was right next door. I walked over and found two salesmen in the showroom.

"Just how friendly is Friendly Ford?" I asked and explained my trouble. They quickly drove a pickup truck to my car and started it. They would accept no payment, so when I got home, I wrote them a note to say thanks. I received a letter back from one of the salesmen. No one had ever taken the time to write him and say thank you, and it meant a lot, he said.

"Thank you" - two powerful words. They're easy to say and mean so much.

小题1:The author planned to stop at Oklahoma City_________.

A.to visit a friend

B.to see his parents

C.to pay at the cash register

D.to have more gas for his car小题2:The words “took off” underlined in Paragraph 2 mean “______”.

A.turned off

B.moved off

C.put up

D.set up小题3: What happened when the author found smoke coming out of his car?

A.He had it pulled back to the gas station.

B.The couple sent him a business card.

C.The couple offered to help him.

D.He called his friend for help.小题4:The battery of the author’s car was dead because_______.

A.something went wrong with the lights

B.the meeting lasted a whole day

C.he forgot to turn off the lights

D.he drove too long a distance小题5:By telling his own experiences, the author tries to show______.

A.how to write a thank-you letter

B.how to deal with car problems

C.the kind-heartedness of older people

D.the importance of expressing thanks

题型:填空题

患者,男性,22岁,因外伤拔除上前牙4个月余,现要求固定修复。检查见缺失。

如该患者为4岁儿童,全口乳牙松动,首先应警惕下列哪一类疾病的发生()

A.心肌炎

B.掌跖角化-牙周破坏综合征

C.糖尿病

D.艾滋病

E.急性肾炎

题型:填空题

患者女,39岁。子宫Ⅱ度脱垂伴 * * 前、后壁轻度膨出,张力性尿失禁。妇科检查:宫颈长约6cm,子宫后位,正常大小,附件未扪及肿物,要求手术治疗。首选手术应是()

A. * * 前、后壁修补术

B.子宫切除+ * * 前、后壁修补术

C.曼氏手术

D. * * 纵隔成形术

E.子宫悬吊术

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