单选题
One weakness of this study may be ______.
A、
h overestimates the level of sociability in the diarists' lives
B、
It underestimates the level of sociability in the diarists' lives
C、
It misinterprets the level of sociability in the diarists' lives
D、
It underrates the level of sociability in the diarists' lives
【正确答案】
B
【答案解析】
因为并不是每个人都会每天写日记，所以这项研究的不足之处是会低估社交活动水平。
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