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【单选题】
一台四极感应电动机,额定转速为 1440 转 / 分,此时定子旋转磁势相对于转子的转速为 ____ 。A.
0 转 / 分；
B.
1500 转 / 分；
C.
60 转 / 分。
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举一反三
【单选题】Cost accountants are responsible for gathering and monitoring data used for controlling the organization's costs. In which value chain activity do cost accountants work?
A.
Research and development
B.
Human resources
C.
Materials management
D.
Marketing and sales
E.
Company infrastructure
【单选题】女性,22岁,腹痛伴频繁呕吐3天,以肠梗阻收人院,血NA+ 133MM01/L,血K+
A.
MOL/L, I-ICOÎ 18MRN。1/ L，BP80/60MMHG，治疗应首先采取
B.
纠正酸中毒
C.
纠正低血钾
D.
纠正低血钠
E.
急诊手术，解除肠梗阻
F.
纠正低血容量
【单选题】Cost accountants are responsible for gathering and monitoring data used for controlling the organization's costs. In which value chain activity do cost accountants work?
A.
Research and development
B.
Human resources
C.
Materials management
D.
Company infrastructure
E.
Marketing and sales
【多选题】Chapter 12 Controlling Project Cost, Time, and Quality一章的重点有哪些?
A.
The schedule delays reasons and solutions
B.
Cost tracking and diagnosing
C.
The reasons of cost overruns and the key points of cost monitoring and taking measures
D.
The concept and index of schedule, the progress of schedule control
E.
The Advantages and disadvantages of Bar chart
【单选题】女，22岁，腹痛伴频繁呕吐3天，以肠梗阻收入院，血Na+ 133mmol/L，血K+ 3mmol/L，HCO-3 8mmol/L， BP 80/60mmHg，治疗应首先采取（ ）。
A.
纠正酸中毒
B.
纠正低血钾
C.
纠正低血钠
D.
急诊手术，解除肠梗阻
E.
纠正低血容量
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