Whether there exists hysteresis in RMB relates to the effects of China's exchange policy.

人民币汇率是否存在回滞的问题关系到我国汇率政策的效果。

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It is tested whether there exists a long equilibrium relationship between consumer confidence index and consumption demand.

对消费者信心指数是否与消费需求存在长期的均衡关系进行了实证研究。

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Whether there exists a periodic impulse component in a vibration signal is an important sign of a mechanical device being faulty.

机械设备振动信号中是否存在周期性的冲击分量是其有无故障的重要标志。

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Or whether there exists an unknown fundamental difference between men who like exercise and those who do not which might account for the findings.

BBC: Prolonged TV viewing linked to lower sperm count

That is all well and good, but for it not to be a problem there needs to be total trust, and it is debatable whether that exists in the England coaching team.

BBC: Ashton's uncertain future

"I called it that because I saw part of myself as drying and not there anymore and I wanted to question the whole idea of love and passion, whether love exists anymore, " Emin says.

WSJ: Reformed Bad-Girl Artist Tracey Emin