A-A+

The information in paragraph 5 indicates that

2022-08-05 16:34:12 问答库阅读 169 次

问题详情

The information in paragraph 5 indicates that PCPA was responsible for ______.
A．a lack of sleep
B．the cats" meowing
C．normal sleeping patterns
D．sleeping about 15 hours a day请帮忙给出正确答案和分析，谢谢！

参考答案

正确答案：A
解析：第五段中关于PCPA的有关描述为Normallycatssleepabout15hoursaday；butKoella'scats，afterreceivingPCPA，spentabout30minutesofeachdaysleeping．即注射了PCPA后，猫每天只睡30分钟了，相对于以前要睡15小时，少了很多，所以A项正确。