9. Left ventricular filling pressure was lowered from an average of 2.926 to 1.596 kPa.

左心室充盈压平均值从2.926千帕降到1.596千帕。

10. The kidney has an abundant blood supply, and though flow may drop to 25% of normal, renal vein oxygen content is often surprisingly high.

肾脏的血供极为丰富，即使血流减少到正常的25%，肾静脉的氧含量仍常常髙得惊人。

11. The researchers found that supplementation with vitamin C cut mutagenic activity almost in half.

研究人员发现，补充维生素C后，诱变活性几乎减少一半。

12. The treatment has been approved by the FDA as a temporary adjunct to diet and behaviour-modification therapy for use in patients who exceed their ideal body, weight by 20 percent or more.

食品和药物管理局已批准这种冶疗作为饮食的暂时性辅助和改变行为习惯的治疗方法，其对象是超过理想体重20%以上的病人。

13. Alternatively the dose may be reduced to 0,5 to 0.75 mg daily.

另一种办法是将日剂量减为0,5〜0.75毫克.

14. The population of this city has increased by 2 000 000 to 15 000 000,

这个城市的人口已增加了200万人，达到1500万人。

15. Two and a half years later, Kohler found that these measures reduced Strep .bugs tenfold in the first group of mother, and 40 percent fewer of their children carried Strep bugs than those in the control group did.

两年半后，柯勒发现这些措施使第一组母亲的链球菌减少到1/10，她们的孩子带有链球菌者比对照组母亲的孩子少40%。

16. An adult who is up and about, but relatively inactive, needs 20 to 30 percent more calories than are required under basal condition. For one engaged in a sedentary occupation, this extra energy requirement rises to from 30 to 40 percent above basal.

—个成年人如起床走动，但活动量不大，其所需热量比基础代谢多20%~30%； 一个伏案工作的人所需能量要比基础代谢多30%〜40%。