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【单选题】
关于制冷原理，以下说法不正确的是( ) A. 任何气体，经等熵膨胀后，温度都会下降 。B.只有当【图片】,经节流膨胀后,气体温度才会降低。C. 在相同初态下，等熵膨胀温度降比节流膨胀温度降大。D. 任何气体,经节流膨胀后,温度都会下降A.
A
B.
B
C.
C
D.
D
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举一反三
【单选题】一辆桑塔纳轿车运行了三年,驾驶员反映,向一个方向转向感觉沉重,定向行驶能力差,同时发现轮胎有异常磨损状况。车主要求做转向轮侧滑量检测。请回答以下问题。对于汽车车轮侧滑量检测前准备,以下要求中不必要的是:
A.
转向轮轮毂轴承间隙符合要求
B.
气象和环境条件符合标准要求
C.
轮胎气压符合要求、且无油污、水渍和嵌入石子、杂物等
D.
检测设备技术状况良好且经正常维护和周期检定合格
【单选题】If open-source software is supposed to be free, how does anyone selling it make any money? It's not that different from how other software companies make money. You'd think that a software company wou...
A.
the value of software should be considered as a whole.
B.
tech buyers should care little about license.
C.
a license doesn't comprise support and maintenance.
D.
customers have to pay a lot to get a license.
【简答题】汽车轮胎的检测主要是对( )和( )的检测。
【单选题】What does NOT necessarily violate copyright laws?
A.
copying any software products to your friends
B.
software piracy
C.
plagiarism
D.
network piracy
【单选题】赵某，女，56岁。患者咳嗽痰少，经常痰中带血，血色鲜红，口干咽燥，颧红，潮热盗汗，舌质红，脉细数。其首选方剂是
A.
泻白散合黛蛤散
B.
百合固金汤
C.
龙胆泻肝汤
D.
桑杏汤
E.
清燥救肺汤
【判断题】农业生物学分类法是将蔬菜作物的生物学特性和栽培技术基本相似的蔬菜作物归为一类,综合了植物学分类法和食用器官分类法的优点,比较适合蔬菜生产上的要求。
A.
正确
B.
错误
【单选题】If open-source software is supposed to be free, how does anyone selling it make any money? It's not that different from how other software companies make money. You'd think that a software company wou...
A.
the value of software should be considered as a whole.
B.
tech buyers should care little about license.
C.
a license doesn't comprise support and maintenance.
D.
customers have to pay a lot to get a license.
【单选题】患者咳嗽痰少，经常痰中带血，血色鲜红，口干咽燥，颧红，潮热盗汗，舌质红，脉细数，治疗宜选用的方剂是（ ）
A.
桑杏汤
B.
清燥救肺汤
C.
百合固金汤
D.
泻白散
E.
龙胆泻肝汤
【简答题】照相机“脸部优先”功能的运用是指( )的运用和( )的运用
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