人体组织对电流的阻力从小到大通常为A.神经-血管-脂肪-肌肉-皮肤-骨骼 B.血管-

题型:单项选择题

问题:

人体组织对电流的阻力从小到大通常为

A.神经-血管-脂肪-肌肉-皮肤-骨骼

B.血管-神经-脂肪-皮肤-肌肉-骨骼

C.血管-神经-皮肤-骨骼-肌肉-脂肪

D.皮肤-脂肪-肌肉-骨骼-神经-血管

E.神经-血管-肌肉-皮肤-脂肪-骨骼

考点:卫生资格考试(中初级)烧伤外科主治医师烧伤外科学
题型:单项选择题

阅读下面短文,回答问题:

PTC是一种新型的半导体陶瓷材料,它以钛酸钡为主,渗入多种物质后加工而成,目前家用的陶瓷暖风器、陶瓷电热水壶等就是用这种材料做成的。PTC有一个根据需要设定的温度,低于这个温度时,其电阻随温度的升高而减小,高于这个温度时,电阻值则随温度的升高而增大,我们把这个设定的温度叫“居里点温度”,用PTC材料制成的电热器具有发热、控温双重功能,应用十分广泛。

①家用固体电热灭蚊器就使用PTC陶瓷电热元件,如图为其电阻随温度变化的图像,由图可知,该PTC材料的“居里点温度”为     ℃。

②家用固体电热灭蚊器工作时的温度基本恒定在165℃左右,若它的温度高于165℃,电阻    ,功率    ,使其温度    (均选填“增大”、“不变”或“减小”)。反之,也能自动调节。因此用PTC材料制成的电热器具有自动调节功能。

题型:单项选择题

关于测定亚硝酸盐含量的操作,错误的是[ ]

A.质量浓度为4mg/mL的对氨基苯磺酸溶液呈酸性

B.对氨基苯磺酸溶液和N-1-萘基乙二胺盐酸盐溶液,应避光保存

C.质量浓度为5μg/mL的亚硝酸钠溶液应保持弱碱性环境

D.制备样品处理液,加入氢氧化铝的目的是中和氢氧化钠

题型:单项选择题

We were on tour a few summers ago, driving through Chicago, when right outside of the city, we got pulled over(被迫停车). A middle-aged policeman came up to the ear and was really being troublesome at first. He said, "You were speeding. Where are you going in such a hurry?" Our guitarist, Tim, told him that we were on our way to Wisconsin to play a show. Then his way towards us totally changed. He asked, "Oh, so you boys are in a band?" We told him that we were. He then asked all the usual band questions about the type of music we played, and how long we had been at it.

Suddenly, he stopped and said, "Tim, you want to get out of this ticket, don't you?" Tim said, "Yes. " So the officer asked him to step out of the car. The rest of us, inside the car, didn' t know what to think as we watched the policeman talk to Tim. Then the policeman put Tim in the back of the police car and threw the car into reverse(倒车), stopping a few feet in back of our car.

Now we suddenly felt frightened. We didn't know if we were all going to prison. Suddenly, the policeman's voice came over in a loudspeaker. He said, "Ladies and gentlemen, for the first time ever, we have Tim here singing on Route 90." Later we knew, the policeman had told Tim that if he sang one of our songs over the loudspeaker in the police car, we would get out of the ticket. Seconds later, Tim started screaming into the receiver. The policeman enjoyed the performance, and sent us on our way without a ticket.

小题1:Why did the policeman stop the boys?

A.Because they drove too fast.

B.Because they were late for their show.

C.Because they didn't see the policeman.

D.Because they had to answer the band questions.小题2:The policeman became friendly to the boys when he knew they ______.

A.had long been at the band

B.played the music he loved

C.were driving for a show

D.promised him a performance小题3:The underlined word "ticket" in paragraph 2 means "a piece of paper that ______".

A.allows you to enter a cinema

B.shows the price or size in a shop

C.shows that you have paid to travel on a bus

D.orders you to pay money because you have done something wrong小题4:How did the boys probably feel when they went on their way again?

A.Happy.

B.Calm.

C.Angry.

D.Frightened.

题型:单项选择题

亚哈的王后是谒巴力的女儿,名叫:()

A、基连哈朴;

B、耶洗别;

C、以利沙伯。

题型:单项选择题

He _____what I said.

A.doesn’t agree on

B.disagrees with

C.disagrees to

D. agrees on

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