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【单选题】
三相绕线型异步电动机拖动恒转矩负载运行时,采用转子回路串入电阻调速,运行不同转速上时,其转子回路电流的大小( )。A.
与转差率成反比
B.
与转差率无关
C.
与转差率成正比
D.
与转差率成某种函数关系
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皮皮学刷刷变学霸
举一反三
【单选题】Which organizational pattern would probably be most effective for arranging the main points of a speech with the specific purpose "To persuade my audience that ivory trade should be banned"?
A.
problem-solution
B.
thematic
C.
persuasive
D.
causal
【判断题】My father wanted the sum of money serving a good and useful purpose. The phrase " serve a purpose"or"serve needs” 意思是“起某种作用,解决问题”。
A.
正确
B.
错误
【单选题】Which organizational pattern would probably be most effective for arranging the main points of a speech with the specific purpose "To inform my audience about the three major campaigns during the Peop...
A.
ytical
B.
logistical
C.
topical
D.
technical
【单选题】()是内存条上面的一个只读ROM,里面记录了该内存的许多重要信息, 如内存的片及模组厂商、 工作频率、工作电压、速度、容量、电压与行,列地址带宽等参数
A.
SPD
B.
USB
C.
UPS
D.
SAT
【单选题】Which organizational pattern would probably be most effective for arranging the main points of a speech with the specific purpose "To inform my audience about the structure of the Yueyang Pavillion in...
A.
descriptive
B.
historical
C.
spatial
D.
chronological
【单选题】Which organizational pattern would probably be most effective for arranging the main points of a speech with the specific purpose "To persuade my audience that there should be stricter laws against ba...
A.
chronological
B.
thematic
C.
problem-solution
D.
causal
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