David and Joyce disagree on the role of news reports.
B.
David thinks TV has bad effects on children.
C.
David thinks if we don’t like the program, we can just switch it off.
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【判断题】In the text How I Got Smart, at last, the author was no longer reading to win the girl’s admiration , b ut h e continued the pursuit for knowledge and got smart.
【单选题】W h at is the fraction o f cases with the disease among the exposed that is attributable to the exposure? Unexposed Exposed Disease 9 17 No disease 7 5