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【单选题】
在通用机械中，同一螺栓组的螺栓即使受力不同，一般也应采用相同的材料和尺寸，其主要理由是( )A.
为了外形美观
B.
便于降低成本和购买零件
C.
便于装配
D.
使结台面受力均匀
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皮皮学刷刷变学霸
举一反三
【单选题】In the passages that follows the last paragraph in the excerpt，the author is most likely to
A.
discuss the way to overcome the problem of overtreating in medicare system
B.
suggest the patients to adjust their expectation on medical treatment
C.
appeal to doctors to adhere strictly to their moral grounds
D.
urge relevant department to issues policies to reform. American medicare system
【单选题】The paragraph that follows the text is probably about
A.
CUNY's reforms.
B.
CUNY's fate.
C.
CUNY's commitment.
D.
CUNY's mission.
【单选题】用立铣刀加 工如图所示的槽,最大转速n应调整至多少min-1? 1n=127/min-1 2n=159/min-1 3n=318/min-1 4n=424/min-1 5n=728/min 材料 钢 / E295(St50-2) 铣刀直径 d = 20mm 铣刀刀齿数 Z = 8
A.
n=127/min-1
B.
n=159/min-1
C.
n=318/min-1
D.
n=424/min-1
【单选题】The story focuses on the tragedy of the loss itself or the search that follows the loss.
A.
Orpheus
B.
Cinderella
C.
Circe
D.
Romeo and Juliet
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