皮皮学，免费搜题
登录
搜题
【单选题】
正常三尖瓣与二尖瓣的血流多普勒频谱有什么不同：A.
三尖瓣血流频谱呈负向，二尖瓣则呈正向 B： D://
B.
三尖瓣血流频谱缺乏收缩期部分 （速度）明显大于二尖瓣血流
C.
三尖瓣血流频谱幅度（速度）明显大于二尖瓣血流
D.
三尖瓣血流频谱幅度（速度）小于二尖瓣
E.
三尖瓣血流舒张早期速度大于二尖瓣
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】三极管按照导电类型的不同,分为PNP管和()管
【简答题】4-4.mp3: Part I Listening Comprehension ( 22 minutes ) Section A Directions: In this section, you will hear serveral news reports. At the end of each news report, you will hear two or three questions....
【单选题】Listen to the passage and choose the right answer to the questions you hear 4U_Lsn_4_C1_T.mp3: Question 1 4U_Lsn_4_C1_Q1.mp3:
A.
People are not accustomed to making calls early in the morning
B.
People would think something unpleasant must have happened if they receive a call early in the morning
C.
People tend to think the call must be of vital importance if the telephone rings early in the day
D.
People would feel annoyed if they received a call while they are shaving or having breakfast
【单选题】4-1.mp3: Part I Listening Comprehension ( 25 minutes ) Section A Directions: In this section, you will hear several news reports. At the end of each news report, you will hear two or three questions. ...
A.
Because they can promote the sales easily than less handsome men.
B.
Because they cannot cooperate well with future colleagues.
C.
Because they seem threatening to future colleagues.
D.
Because they are more competent than the decision makers.
【单选题】Directions: In this section, you will hear two long conversations. At the end of each conversation, you will hear four questions. Both the conversation and the questions will be spoken only once. Afte...
A.
1. A) Before finishing school.
B.
B) After finishing university.
C.
C) During her university course.
D.
D) Between high school and university.
【简答题】具有 ___ 区和 ___ 区且发生雷击后果严重 的爆炸危险场所, 属于第一类防雷建筑物。
【简答题】20151201-Part3.mp3: Part 3 Passage Directions: In this section, you'll hear some short passages. At the end ofeach passage, you will hear some questions. Both the passage and the questionswill be spok...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
