妊娠期缺碘不仅导致胎儿脑损伤,而且导致低出生体重、早产以及围产期和婴儿死亡率增加。
Iodine deficiency during pregnancy not only results in brain damage to the fetus, but also in low birth weight, prematurity and increased perinatal and infant mortality.
一般来说,遗传,妊娠期感染,或低出生体重等均可能导致该病。
It is often a result of genetics, infection during pregnancy, or low birth weight.
Half of you did above average on the Midterm; half of you did below average on the Midterm, but if I went up and asked each of you why the answers would not be symmetrical.
你们当中有一半人期中考得比平均分高;,有一半期中考得比平均分低,但如果我去问你们为什么,答案会各有不同呢。
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