光固化树脂基质主要是() A.MMA B.MMA均聚粉或共聚粉 C.Bis-GM D

题型:单项选择题 B1型题

问题:

光固化树脂基质主要是()

A.MMA

B.MMA均聚粉或共聚粉

C.Bis-GM

D.PMM

E.BPO

考点:口腔医学技术(主管技师)口腔技师基础知识口腔医学技术基础知识考前冲刺(二)
题型:单项选择题 B1型题

根据“局部地区的晨昏线示意图”(AB为晨线),判断1~2题。

 

1、此时北京时间为[ ]

A、3时44分

B、14时00分

C、4时00分

D、12时2分

2、此时,太阳直射点的地理坐标是[ ]

A、10°S,60°E

B、20°S,120°W

C、10°N,60°E

D、20°N,120°W

题型:单项选择题 B1型题

E


Last year, Shanghai-born Charles K. Kao and two North American scientists got the 2009 Nobel Prize(诺贝尔奖) in Physics together. Their work made the Internet come into a new age.
Kao, 77, was born in Shanghai in 1933. He is famous for finding out how to transmit (传输)light signals(信号) over long ways through glass fibers (玻璃纤维) as thin as a human hair. His work makes the Internet information transmit faster around the world. Kao was vice chancellor(副校长) of the Chinese University of Hong Kong from 1987 to 1996. He doesn’t work, and lives in Hong Kong now.
The Chinese people were pleased to learn the good news. "The people of Hong Kong and I send our congratulations to Kao on receiving the prize... Kao is also a true gentleman. We are greatly proud to have such an excellent person in Hong Kong. "Zeng Yinquan once said.
Willard Boyle, a Canadian American, and George Smith of the United States got the other half of the prize.

How many scientists got the 2009 Nobel Prize in Physics together ( )

A.One.

B.Two.

C.Three.

D.Four

题型:单项选择题 B1型题

关于设备和其英文缩写对应

错误

的是

A.计算机X线摄影——CR
B.数字X线摄影——DR
C.计算机横断体层装置——CT
D.数字减影血管造影——DSA
E.数字减影血管造影——DF

题型:单项选择题 B1型题

出境的法定检验检疫货物,应在产地报检并检验检疫合格后方可到口岸检验检疫机构办理通关手续。( )

题型:单项选择题 B1型题

日常生活中哪些塑料包装能重复利用?

更多题库