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【单选题】
下列心电图表现属于被动性异位心律的是A.
早搏
B.
心房颤动
C.
心室颤动
D.
阵发性心动过速
E.
交界性逸搏心律
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反馈参考答案：
举一反三
【简答题】防火墙的体系结构一般有双重宿主主机体系结构、_________和子网过滤体系结构。
【单选题】听力原文：W: Randy, how are you finding life on campus this year? M: Much the same as last. Q: What does Randy mean? (14)
A.
At last he enjoys campus life.
B.
School has changed little since last year.
C.
He has many new friends.
D.
It's easier to find his way around this year.
【单选题】防火墙的体系结构一般有（）
A.
对等和服务器两种体系结构
B.
总线、环形和星型三种体系结构
C.
双重宿主主机、被屏蔽主机和被屏蔽子网三种体系结构
D.
A类、B类和C类三种体系结构
【单选题】听力原文：W: So, how long have you lived in New York? M: All my life. I was born hero. Sounds like you're new in town. W: Two months. I just moved here from Michigan. Sounds like you're new in town. M: Wow...
A.
Since he was born.
B.
Since his early childhood.
C.
Two years.
D.
Two months.
【简答题】Q: How was my life while I was living with my aunt?
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