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??????QRS?PR??????
?? 2010-04-23 18:11 ??2???? ???,, ?
??? 2010-04-23 18:20 ???????QRS???????P--R????
??? 2010-04-23 18:41
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?? 2010-04-23 20:46 ??QRS???
??? 2010-04-23 21:03 ?????????
?? 2010-04-23 21:07 ...
?? 2010-04-23 18:11 ??2???? ???,, ?
??? 2010-04-23 18:20 ???????QRS???????P--R????
??? 2010-04-23 18:41
????,?,?
?? 2010-04-23 20:46 ??QRS???
??? 2010-04-23 21:03 ?????????
?? 2010-04-23 21:07 ...
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1????P-R>0.20??P?QRS?.
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2???????P?QRS??2:1;3:2;4:3????????????????
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