某技师使用天津产BGL-50G型高频铸造机铸造钴铬支架,在坩埚内放适量合金,将焙烧好

题型:单项选择题

问题:

某技师使用天津产BGL-50G型高频铸造机铸造钴铬支架,在坩埚内放适量合金,将焙烧好的铸圈放在“V”形托架上,对准铸道口,调整配重,熔解时合金飞溅,铸造时铸道口上移,刚按停止键就打开机盖,这种铸造机采用的是哪种铸造方法

A.蒸汽压力铸造

B.离心力铸造

C.真空、充压、加离心铸造

D.真空铸造

E.真空、充压铸造

考点:口腔医学技术士口腔技士专业知识初级口腔技士专业知识7
题型:单项选择题

哪一种激素是降低血糖的最主要的激素()。

A.胰岛素

B.胰岛B细胞

C.胰高血糖素

D.胰岛A细胞

E.肾上腺素

题型:单项选择题

第二卷
第四部分:写作(共三节, 满分40分)
第一节阅读填空(共10小题; 每小题1分,满分10分)
阅读短文,根据所读内容, 在下表中的空格处填上适当的单词和短语,每空不超过3个单词。
Animals seem to have the sense to eat when they are hungry and they do not eat more than their bodies need. It has been proved that rats will, when given a choice over a period of time, prefer water with vitamins to water without vitamins even though there is no difference in taste or smell between the two water bottles. When a fragrant flavor(香味)was added to the vitamin-enriched water, the rat did seem to develop a taste for it and kept drinking it even after the vitamins were switched to the clear water. In time, however, they broke the habit and went back to where the necessary vitamins were.
In a classic experiment, babies of 6 to 12 months old were placed in a cafeteria(自助餐厅) feeding arrangement, with a wide selection of baby food before them. They were given what ever food they pointed to or appeared interested in. We are told that at first they showed some unusual eating patterns, but that over a period of time they managed to select well-balanced diet.
So, in selecting food, rats and babies do seem to know and act on what’s best for them. Obviously, there is a ‘body wisdom’, which humans soon lose. Most of us do not eat as wisely as we could. Many of our food preferences are culturally determined and influenced by long-established habits. Some people eat fox, dog and blackbirds, while we eat cows and pigs. So what people eat and how much they eat seems to be greatly influenced by what is going on around us.
Research on eating habits
76._______       
To find out the relationship between the need of the body and eating.
 
78._______        
Subjects
Ways
77.           
 
Rats
●Given two water bottles  
without difference in
79.________.
●80.   __ water with fragrant
flavor and water with vitamins.
●81. _  water with vitamins to water without vitamins.
●Drink water with fragrant flavor first, then turn to water 82.      __  .
83.         of 6-12 months
Given whatever they pointed to or were interested in.
84.__   unusual eating patterns at first, later select a well-balanced diet.
Conclusion
Rats and babies have a 85.   ____   in selecting food.
 
题型:单项选择题

下列关于喉癌放疗并发症处理不正确的是()。

A.喉轻度水肿出现时,宜及时予以超声雾化治疗

B.喉软骨坏死宜首选抗炎保守治疗

C.放疗中避免用声过度可减轻急性放射反应

D.根治性放疗后3个月喉水肿持续存在,并伴声带固定,需考虑肿瘤未控可能,一经证实可行解救性喉切除术

E.放疗前或放疗中戒烟可减少并发症的发生

题型:单项选择题

装配蜗杆传动机构时,蜗轮的轴向位置可通过改变()来调整。

题型:单项选择题

多相流体共存时,各相流体相对渗透率之和总是()。

A.>1

B.<1

C.=1

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