The modern Paralympics were born in ______ in ______.
A. Rome, 1948
B. Rome, 1960
C. London, 1960
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Sir Ludwig Guttmann used sports as part of the ______ for his patients.
A. medical therapy
B. spiritual therapy
C. athletic therapy
Today, athletes from ______ different disability groups take part in the Paralympics.
A. five
B. six
C. seven
在不完全液体摩擦滑动轴承设计中,限制p值的主要目的是________。
A. 防止轴承因过度发热而胶合
B. 防止轴承过度磨损
C. 防止轴承因发热而产生塑性变形
D. 防止轴承因发热而卡死
在不完全液体摩擦滑动轴承设计中,限制pv值的主要目的是________。
A. 防止轴承因过度发热而胶合
B. 防止轴承过度磨损
C. 防止轴承因发热而产生塑性变形
D. 防止轴承因发热而卡死