An over the counter urine test kit or a blood test can measure LH (luteinizing hormone) levels, which is the trigger for ovulation and the cause of the subsequent rise in progesterone.
药店的排卵试纸或血液检查可测量黄体生成素水平，那是导致排卵及随后黄体酮升高的触发因素。
2
Subsequent application of diagnostic reflection tended to counter this bias; it improved diagnostic accuracy in both first-and second-year residents.
诊断反应随后的应用倾向于处理这种偏见，它改善了两个第一和第二年住院医师诊断的准确性。
3
With the down stroke of a wing during flight, the body moves up, but the subsequent upstroke can counter that force.