The MR pulmonary perfusion imaging was achieved by the first-pass contrast agent method.

利用对比剂首次通过法可进行MR肺灌注成像。

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The Redwood City girls, by contrast, played in front of their opponents, to prevent them from catching the inbounds pass in the first place.

而红杉队的女孩们却站在攻方球员的身前，直接阻碍对方拿球。

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By contrast, those who pass the nanny test are those who keep nannies happy for a long time.

相对而言，那些通过保姆测试的对象，是那些很长时间以来一直让保姆开心的人。

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The annual pass, in contrast, would represent a sizable discount over current prices, probably as a reward for particularly loyal users.

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And the infinite emptiness of the brilliant sky above means that on the rare occasions when an object, such as a plane or a hot-air balloon, does pass through, the bright contrast lends it such a fierce intensity that it confuses the eye.

BBC: New Mexico��s alien nation

Today, by contrast, individual countries may pass laws like the Foreign Corrupt Practices Act but the overarching strategy that drives anticorruption must be multi-national in the truest sense.

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