Results : ( 1 ) The positive expression of MMP - 2 reinforces gradually from normal villus, benign mole to malignant mole which has statistically significance ( P < 0. 05 ).

结果（1）从正常绒毛→良性葡萄胎→恶性葡萄胎，MMP-2的阳性率有升高趋势，差异有统计学意义（P〈0.05）。

youdao

The latest news on the economy, though not positive, was at least benign, and that helped ease investor anxiety.

有关于经济的最新消息，尽管并非正面，也至少良性，有助于缓解投资者的焦虑。

youdao

PPD test showed that intense positive reaction was 42% in the benign cases, but negative response was 48% in the malignant cases.

精制蛋白衍化物（PPD）皮试显示：良性病变强阳性反应占42％，恶性病变阴性反应占48％。

youdao

First, PSA levels generally increase with age and can be inflated because of more benign problems in the prostate, leading to false-positive results.

FORBES: Magazine Article