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【简答题】
滚动轴承有球轴承和滚子轴承之分,当载荷有一定冲击时用( )轴承。
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举一反三
【简答题】From the quiz researchers find that most people are quite confident about their feelings in the ______.
【单选题】The passage suggests which of the following about Nightingale’s relationship with the British public of her day?
A.
She was highly respected, her projects receiving popular and governmental support.
B.
She encountered resistance both from the army establishment and the general public.
C.
She was supported by the working classes and opposed by the wealthier classes.
D.
She was supported by the military establishment but had to fight the governmental bureaucracy.
E.
After intially being received with enthusiams, she was quickly forgotten.
【简答题】已知项目的获利指数为1.2，则可以知道项目的净现值率为2.2。（）
【简答题】已知项目的获利指数为1.2，则可以知道项目的净现值率为0.2。()
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