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【单选题】
下列哪种措施可明显减小切削力( )。A.
减小刀具前角
B.
增大刀具前角
C.
增大背吃刀量
D.
减小切削速度
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反馈参考答案：
举一反三
【单选题】During the war. a number of young men were ______ into the war industry.
A.
recruited
B.
adopted
C.
contributed
D.
resumed
【多选题】从人因工程学的观点来看，促使疲劳过早出现的原因有（）
A.
劳动时不能维持良好的劳动姿势
B.
不按生物力学的原理合理使用体力
C.
机具或控制器的形状、大小、重量、高低、远近设计不合理
D.
座椅不符合人体解剖结构特点
【单选题】During the Second World War, Churchill told the British people that ______.
A.
the war would soon end if they fought hard
B.
the country would soon recover from the war
C.
it was be hard for them to win the war
D.
the hardships of the war had to be endured
【简答题】During the War, the fundamental documents of the US,__________, was drafted and issued in 1776.
【简答题】英译汉：The threat of war, the reality of imprisonment during World War, one as a German citizen, and the unbearable heat in Africa did not deter him at all.
【单选题】During World WarⅡ, Japan attacked Pearl Harbor without declaring war _____ America.
A.
in
B.
with
C.
to
D.
Against
【简答题】During the eight years war， many people _______ their blood for their country. A.shed B.tempted C.reserved D.devoted
【简答题】Was it during the Second World War he died?
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【简答题】During the War, the fundamental documents of the US,__________, was drafted and issued in 1776.
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