问题
多项选择题
左心房肥大的心电图诊断包括（）。
A.P波峰距<0.04s
B.P波顶峰有明显切迹或双峰，峰距>0.04s
C.P波时限>0.12s
D.P波电压>0.25mV
E.V1Ptf<0.04mm·s
答案
参考答案：B, C
搜题请搜索小程序“爱下问搜题”
左心房肥大的心电图诊断包括（）。
A.P波峰距<0.04s
B.P波顶峰有明显切迹或双峰，峰距>0.04s
C.P波时限>0.12s
D.P波电压>0.25mV
E.V1Ptf<0.04mm·s
参考答案：B, C
| 完形填空。 | ||||
| Please give kids a break. The request came after an online survey about 1 activities during breaks. Some schools only 2 students to play in the corridors (走廊) during the ten-minute breaks, while 3 even make students do homework. About this problem, different people have 4 ideas. Seventy percent of parents in the survey said their children 5 to play outside during breaks. Teachers should know 6 are born to be active, 7 education shouldn't run against the laws of nature. "It 8 that the playground is useless," said one of the parents. Some parents 9 to what the school did. "Games during breaks will make children too excited to listen to the teacher 10 in class. It's not bad to prepare them better for the 11 class." Schools had their own reasons to do this. Head teachers were facing lots of responsibility over school 12 . Some schools stopped activities 13 children were injured during breaks. They didn't want to do so, 14 there was no better 15 to solve the problem. | ||||
|