行邻面预备的目的是()A.为3/4冠预备出足够的邻面间隙 B.保证冠顺利就位 C.消

题型:单项选择题

问题:

行邻面预备的目的是()

A.为3/4冠预备出足够的邻面间隙

B.保证冠顺利就位

C.消除覆盖区的倒凹

D.以上均不正确

E.以上均正确

考点:公卫执业医师公卫执业医师90
题型:单项选择题
对话填空 (满分10分)
请认真阅读下列对话,并根据各题所给的首字母的提示,在答题卡右栏中标有题目的横线上,写出一个英语单词的完整、正确的形式,使对话通顺。
A: Lucy, do you have any (76) p_______ for this weekend?
B: Yes. I’ll go to the village to visit my grandpa. It’s his 77th(77) b_____.
A: Congratulations! By the way, aren’t your grandparents living with you?
B: After my grandma passed away 3 years ago, my grandpa decided to live (78) a____. We have invited him to live with us several times, but he (79) r____.
A: Why? I think he would be nicely taken (80) c____ of if he lived with you.
B: We all do. He said he couldn’t leave his old neighborhood (81) w_____ all of his old friends lived. (82) B_____, he didn’t want to lose his independence.
A: It doesn’t matter if he is in good (83) h____, is he?
B: No. he suffers from a disease that needs close attention.
A: I’m sorry to hear that. But how can he live alone (84) u___ this condition?
B: Luckily, with the help of a new technology, which uses placed home sensors to record motion in key spots, such as the bathroom and bedroom, he can live in his own space, and we don’t (85) w____ about him.
A: How great it is!
(76)_____
(77)_____
(78)_____
(79)_____
(80)_____ 
(81)_____
(82)____ 
(83)____ 
(84)____ 
(85)___ 
题型:单项选择题

将人体的热能收集起来,然后转换成电能,也是一条经济实用的途径。美国匹兹堡大学设计了一个热量收集系统,该系统将学生和教师释放的热能,电灯、厨房以及从窗外射入的阳光等所产生的热量,统统聚集到一个中央设备中,再由地下的管道重新分散。据说,此系统在寒冷的冬季,完全可以供学校的10座大厦取暖之用。其实,这一系统完全可以具备双重用途,即在炎热的夏季里,还可以当做制冷设备使用,从而使大楼中的环境非常舒适。
这段文字的中心意思是( )。

A.美国已经开发出了人体热能设备
B.人体热能能够转换为电能
C.热量收集系统具有双重功能可以使环境更加舒适
D.人体热能的开发是一条经济实用的途径

题型:单项选择题

风湿性心肌炎下列哪项不正确

A.心尖区可听到吹风样收缩期杂音

B.可有心音低钝

C.可出现心律失常

D.不会出现心力衰竭

E.心电图可有I度房室传导阻滞,ST段下移

题型:单项选择题

岩心钻探的岩石可钻性分为()级。

A、9

B、10

C、11

D、12

题型:单项选择题

经学的地位及对文化的影响。

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