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问题 单项选择题

管电压250Kv管电流为15mA、的X线治疗机房墙体设计时（距X线大于2m），混凝土建筑厚度最少应为

A、 160mm

B、 190mm

C、 230mm

D、 260mm

E、 320mm

答案

参考答案：C

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NEMSNEWRI Environmental Master of Science
NEWRI: Nanyang Environment & Water Research Institute
Be a leader in environmental science and engineering
through the NEMS programme
NEWRI Environmental Master of Science(NEMS) is a primary graduate education and research programme conducted by Nanyang Technological University's (NTU's) NEWRI, with summer attachment at Stanford University. It aims to train engineers and scientists to meet the increasing environmental challenges for Asia and the wider region.NEWRI-Nanyang Environment &
Water Research Institute
NEWRI is enabling Singapore to be a global center of environmental science and technology in providing technological solutions to the world. It is committed to environmental and water technologies through its ecosystem of education, research and developmental activities.
NEWRI is trying its best to pull together NTU's water and environment-related centres and institutes, gathering one another's strengths for the benefit of industry and society.
Master of Science Applications ● Applications open now and close on 30 May 2012 for Singapore applicants.  ● Graduates having relevant engineering or science background, including final-year students, are invited to apply.  ● Applicants are required to have a certificate of GRE.   Further information and application materials are available at the Website: http:// www. Cee.ntu.edu.sg/Graduate/NEMS
Scholarship for tuition grants and living expenses at both Stanford and NTU are available Enquiry contact:  Ms Christian Soh Tel:(65) 6861 0507    Fax:(65) 68614606 Email: nems@ntu.edu.sg    Information on other graduate programmes available at: www.ntu.edu.sg/cee/program/postgrad.aspHighlights of Programme:
     Students spend a full summer term at Stanford taking regular courses and continue with the rest of their academic programme at NTU.
     It is a 12-month full-time course in environmental science & engineering.
     Students under NEMS will have opportunities to do research projects under NEWRI as well as to continue for the Doctor's degree.
     Graduating students receive the NTU degree and a certificate from Stanford for their summer attachment.
1. If one wants to apply for the NEMS programme, it is essential for him to __________.
A. have passed the GRE test
B. make contact with Ms Soh  
C. possess a university diploma
D. major in engineering or science
2. Students admitted to the NEMS Programme __________.
A. will first have regular courses at Stanford
B. needn't be released from their regular jobs
C. are required to obtain a Doctor's degree
D. can receive degrees of both NTU and Stanford
3. What's the main purpose of the NEMS programme?
A. To offer scholarship for tuition grants and living expenses.
B. To strengthen the cooperation between NTU and Stanford.
C. To cultivate experts on environmental science and engineering.
D. To introduce Nanyang Environment & Water Research Institute.
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单项选择题

关于我国的行政诉讼，叙述错误的是（ ）。

A．行政诉讼的被告必须是行政主体

B．行政诉讼的原告不能是行政机关

C．行政诉讼的审查对象是行政主体的具体行政行为

D．行政诉讼的审判组织是人民法院的行政审判庭
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