A systolic blood pressure reading below 120 is considered normal.

收缩期血压读数低于120被认为是正常的。

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A normal blood pressure reading requires a systolic value of 91-119 and a diastolic value of 61-79.

正常的血压读数要求心脏收缩值在91 - 119之间，而心脏舒张值在61 - 79之间。

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Systolic blood pressure (the first number in a blood pressure reading), measured daily, was also lower in the group eating dark chocolate.

吃黑巧克力者每天所测收缩压(血压读取中的第一个数值)也低。

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Stephen Pope, global equity strategist at Cantor Fitzgerald in London, says there are still a number of undetermined issues, including the pressure reading which is still short of the level that BP itself has said it needs to see to declare the well sound.

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Meanwhile, the McCain campaign made fun of Obama's energy proposal Monday by distributing tire pressure gauges reading "Obama's energy plan" to McCain's traveling press corps.

CNN: Obama calls for tapping into strategic oil reserves

Housing stocks were also under pressure after the April reading on builder sentiment dipped to its lowest level since October.

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