皮皮学，免费搜题
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【单选题】
患者,36岁。慢性风湿性心脏病二尖瓣狭窄病史.近日,轻度活动即感心悸、气促。此患者并发心律失常,最常见的类型为A.
室性期前收缩
B.
性期前收缩
C.
阵发性心动过速
D.
心房颤动
E.
房室传导阻滞
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Unfortunately, the badly injured people in the big fire died _____. [ ]
A.
each other
B.
one after another
C.
one after one
D.
one another
【简答题】Unfortunately, a big tree near the window blocks _____the sun.
【单选题】关于反抗型恒转矩负载,下列描述错误的是
A.
转速方向发生变化，负载转矩的方向也发生变化
B.
负载转矩大小不随转速大小变化而变化
C.
典型机械为提升机提升机构
D.
典型机械为皮带运输机
【单选题】Unfortunately, there is little ____ of seeing these big questions answered.
A.
prospect
B.
process
C.
provide
D.
probably
【单选题】Ian is a big Braves fan and pays $100 for a ticket to see one of their play-off games. Unfortunately, he left the ticket in his jeans when he laundered them and the ticket is destroyed. According to m...
A.
not go to the game.
B.
buy another ticket for $100 and attend the game.
C.
buy another ticket and attend the game only if he can buy the ticket for less than $100.
D.
watch the game on TV.
相关题目：
【单选题】关于反抗型恒转矩负载,下列描述错误的是
A.
转速方向发生变化，负载转矩的方向也发生变化
B.
负载转矩大小不随转速大小变化而变化
C.
典型机械为提升机提升机构
D.
典型机械为皮带运输机