winnie的练习记录 Day17 老师出差，全靠自觉

连续两天没有课程了，说实话内心的本我有窃喜，典型的偷懒心理。但是超我会出来指责，老师不在照样有练习任务啊，快去练习吧！

下班后练习半小时，还是没有达到练习量，但也算完成今日任务吧。

练习材料：Without lifesaving measures, the brain starts to die within four to six minutes. CPR combines breathing into the victim's mouth and repeated presses on the chest. CPR keeps blood and oxygen flowing to the heart and brain.However, a new Japanese study questions the usefulness of mouth-to-mouth breathing.

读的不好的词有study questions,usefulness，原因很明显，那天的课确实没有好好听，练习也比较敷衍，真的效果好坏立刻就出来了。

既然已经投入了时间，那就要把效果练出来，及时复习前面的课程，特别是学的不好的那些，加油！