小剂量紫外线照射对细胞DNA,的影响是 A.抑制作用 B.破坏作用 C.刺激作用 D

题型:单项选择题

问题:

小剂量紫外线照射对细胞DNA,的影响是

A.抑制作用
B.破坏作用
C.刺激作用
D.中止作用
E.没影响

考点:康复医学治疗技术士康复技士专业知识初级康复医学技士专业知识
题型:单项选择题

读漫画《以辛勤劳动为荣》,漫画能够最直接传递出的信息是(   )

①劳动者在生产力发展中起主导作用 

②劳动是人类文明进步发展的源泉        

③光荣属于劳动者                 

④各种正当职业的劳动者没有高低贵贱之分以辛勤劳动为荣

A.①②

B.③④

C.①③

D.②④

题型:单项选择题

Cathy was a secretary of ABC Ltd. Last Monday, she was late for the office by five minutes after she got out of bed late that morning. It was the first time that Cathy did not arrive at the office on time. The regulation of the company requires the employees to report for their duties punctually.To avoid problems, Cathy told the company that it was the traffic congestion that caused her to be late. This did not affect Cathy in the performance of her duties for the company. The company has discovered that Cathy’s explanation of her lateness was a lie.Required:In relation to the Employment Ordinance (Cap 57), advise the company as to whether there is any ground for the company to dismiss Cathy summarily. (10 marks)

题型:单项选择题

非调质钢是在()的基础七加入一定量蓄锰和微量的钒、钛、铌等元素。

A.低碳钢

B.中碳钢

C.高碳钢

D.铸钢

题型:单项选择题

检验项目当可采用简易快速的检验方法时,必须采用全数检验方案。

题型:单项选择题

高压加热器在进行堵管工艺操作时应遵循哪些原则?

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