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【简答题】
某地p 0 =0.1MPa、t 0 =17℃。测得气轮机进、出口燃气参数如下:p 1 =0.5MPa、t 1 =600℃;p 2 =0.1MPa、t 2 =270℃,燃气流量q m =1800kg/h,气轮机向大气环境散热Φ=3600kJ/h。若燃气的平均比热容c p =1.014kJ/(kg·K),问此人的测量结果是否可靠?为什么?
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参考答案:
举一反三
【单选题】An unlucky Singaporean thief picked up six years of hard labor after the unique(独特的)ring of the mobile phone he stole led police straight to him. Pretending to be a police detective, Rahman Magundario...
A.
stole the phone for money
B.
sold the mobile phone for its unique ring
C.
pretended a police officer because he looked like a policeman
D.
stole the phone because he like the ring
【单选题】In Singaporean English, dental fricatives /θ/ and /ð/ tend to be pronounced as
A.
/t/ and /d/
B.
/s/ and /z/
C.
/θ/ and /ð/
D.
/ʃ/ and /ʒ/
【单选题】下列关于绩效考核的说法错误的是______。
A.
绩效考核的目的是促进员工个人、所在部门和整个企业整体绩效的提高
B.
绩效考核既要解决考核什么和怎样考核的问题,又要根据绩效考核结果对员工进行奖惩、晋级、培训等,这些都充分体现了它的学习和导向功能
C.
企业对员工的绩效考核主要包括工作业绩、工作能力和工作态度三个考核项目
D.
绩效考核标准必须是明确、具体和可衡量的,对企业成员应具有明确的导向性
【单选题】关于绩效考核方法的说法,错误的是( )。
A.
以员工特征为导向的绩效考核方法衡量的是员工的个人特性
B.
以员工特征为导向的绩效考核方法的有效性和可靠性都较强
C.
以员工工作结果为导向的绩效考核方法的优点是考核目标明确,导向性强
D.
以员工工作结果为导向的绩效考核方法无法屏蔽外界环境对员工绩效的影响
【判断题】2a The formation and development of Singaporean culture 2b A study of Singaporean culture from the perspective of multi-racialism 2b is better.
A.
正确
B.
错误
【单选题】----The Singaporean singer Stefanie Sun took the Most Popular Female Award in Hong Kong. ----But when she studied in middle school, no fans could have imagined how well she _______ in the world of ent...
A.
would do
B.
was doing
C.
had done
D.
did
【单选题】In Singaporean English, the stress pattern of the word “competition” would be like
A.
'competition
B.
com'petition
C.
compe'tition
D.
competi'tion
【判断题】与一般的风险投资不同的是, “阿育王”(Ashoka)不以被投者的项目成败来评估投资绩效,它更关注被投者十年之后的状况。比如是否仍然投身于社会改革,取得了什么成果。
A.
正确
B.
错误
【单选题】氯丙嗪治疗精神病时最特征性的不良反应是
A.
体位性低血压
B.
过敏反应
C.
内分泌作用
D.
锥体外系反应
【判断题】2a The formation and development of Singaporean culture 2b A study of Singaporean culture from the perspective of multi-racialism 2a is better.
A.
正确
B.
错误
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