自美国内战以来一直缓慢上升的离婚率，在大萧条开始后的第二年，即1930年，突然下降。
The divorce rate, which had been rising slowly since the Civil War, suddenly dropped in 1930, the year after the Depression began.
WIMP即大质量弱相互作用粒子，是暗物质理论最主要的候选者。WIMP产生于大爆炸中，自产生后一直聚集、散开形成星系。
The leading candidate is a WIMP, or weakly-interacting massive particle, that was produced in the big bang and has been clumping up and seeding structures such as galaxies ever since.
总结了治疗多发性脾脓肿的三条经验，即一针多腔，由深及浅，先小后大的原则，强调残余脓肿不论大小均要穿刺治疗。
The three principles on treatment of multiple splenic abscesses are one needle for many abscesses if ROM deep to shallow; and from, small to big.
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