Contrast to researchers’ expectations, dysfunctional family relationships and poor 【M1】______ communication styles appear to h

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问题    Contrast to researchers’ expectations, dysfunctional family relationships and poor   【M1】______
communication styles appear to have much effect on whether young children become        【M2】______
depressed, a study has found. While many children under 5 exhibit symptoms of
depression, they often have not been exposed against known risk factors, experts find.  【M3】______
And many children who are exposed to those risk factors~ appear to be resilient.
In the study, Australian researchers looked at many factors, including marital partner  【M4】______
change, mothers’ health in pregnancy, a child’s health in the first six months of life and
marital anxiety in more than 5,000 mothers over a period of five years. But few of them
correlated to early childhood depression.
The authors warned that their results, published                                         【M5】______
in the June issue of Social Psychiatry and Psychiatric Epidemiology, depended on reports
by mothers about their children’s experience,
and that the mothers’ emotional states might                                             【M6】______
have affected those reports. They also conceded that young, lonely, low-income mothers   【M7】______
were often lost as to follow-up during the years of the study, and that the children     【M8】______
those mothers might be expected to have higher rate of depression. "If what we have      【M9】______
found is correct," said Dr. Jake Najman, the lead author and a professor of sociology
at the University of Queensland, "then depression in children has a large constitutional
component" that is transmitted either genetically or by exposure to risks before or during
pregnancy. Dr. Najman suggested that early invention might help prevent depression      【M10】______
from developing in early life.
【M2】

选项

答案much→little。

解析 前面提到同老师预期的不一样,它对小孩们的效果微乎其微。
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