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单选
右室室壁激动和左室室壁激动时间分别为()
A A.0.01~0.02秒,0.02~0.05秒
B B.0.01~0.02秒,0.02~0.05秒
C C.0.01~0.04秒,0.02~0.06秒
D D.0.01~0.05秒,0.02~0.04秒
E E.0.01~O.15秒,0.02~0.04秒
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正确答案:

B