单项选择题

From the last paragraph we can deduce that ______.

A．differences mainly come from culture
B．differences can be neglected
C．we will gain nothing if giving up differences
D．we will lose anything if keeping differences

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单项选择题

What does the article mainly want to tell us

A．History of skating.
B．Development of skating.
C．Skating tendencies.
D．Skating.

单项选择题

From the passage we can infer that _____.

A．many people have dedicated to the skating
B．modem speed skating will become more and more quick.
C．figure skating will be further innovated and improved.
D．more and more people like skating now.