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1976年7月28日，唐山发生强烈地震。突发地震灾害所造成的恐惧心理，会不会通过孕母影响子代的智力发育？地震十年后，我们在市几所小学随机抽查348名学生。以地震当天至次年5月出生的为地震组（206）名，以同期外地出生来唐山定居的儿童142名为对照组。两组母亲妊娠期均健康，
July 28, 1976, a strong earthquake in Tangshan. Sudden earthquake disaster caused by the fear, will not affect the offspring pregnant mother mental development? Ten years after the earthquake, we randomly sampled 348 students in several primary schools in the city. The earthquake group (206) was born on the day of the earthquake and then in May of the following year, and 142 children born outside Tangshan in the same period were taken as the control group. Both groups of mothers during pregnancy were healthy,