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【简答题】
工作在交流电压 V ,或直流电压 V及以下的电路中起通断、保护、控制或调节作用的电器产品叫低压电器。
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皮皮学刷刷变学霸
举一反三
【简答题】相贯线的基本特性有 和 。
【单选题】When was Albert Einstein awarded the Nobel Prize in Physics?
A.
Albert Einstein was awarded the 1920 Nobel Prize in Physics in 1921.
B.
Albert Einstein was awarded the 1921 Nobel Prize in Physics in 1922.
C.
Albert Einstein was awarded the Nobel Prize in Physics in 1921.
D.
Albert Einstein was awarded the Nobel Prize in Physics in 1920.
【单选题】In 1954, ______ was awarded the Nobel Prize for literature for his 'mastery of the art of modern narration'.
A.
T.S. Eliot
B.
Ernest Hemingway
C.
John Steinbeck
D.
William Faulkner
【简答题】( )是G71、G74、G73粗加工后精加工指令
【简答题】She was awarded a prize for the film.（ ）
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