皮皮学，免费搜题
登录
搜题
【单选题】
心血管疾病中各种情况最容易并发脑血管栓塞的是A.
二尖瓣关闭不全
B.
主动脉瓣狭窄
C.
高血压，动脉硬化
D.
心力衰竭
E.
二尖瓣狭窄伴心房颤动
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
【简答题】食品中的结合水根据被结合的牢固程度可细分为_______、_______和多层水。
【简答题】For years and years people have been saying that railways are dead. “We can do without railways,” people say—as if cars and planes have made railways unnecessary. We all keep hearing that trains are s...
【简答题】For years and years people have been saying that the railways are dead. “ We can do without railways.” People say…as if motorcars and planes have made the railways unnecessary. We all keep hearing tha...
【单选题】疏散分层形树冠，有中央领导干，可分三个层次，层与层之间主枝错落着生，夹角角度相同，层距要求（ ）。
A.
30~50 cm
B.
50~60 cm
C.
60~70 cm
D.
80~100 cm
【简答题】The company will carry out some programs on railways.
【多选题】皮圈牵伸型式的特点是
A.
不利于主牵伸区浮游区长度的缩短
B.
纤维变速点位置更加集中、稳定、靠近前钳口
C.
皮圈部分能在前牵伸区形成合理的摩檫力界分布
D.
采用弹性钳口,对纤维的控制力好
【简答题】The coming of the railways in the 1830s _____ our society and economic life. (A) transformed (B) transported (C) transferred (D) transmitted
【简答题】The International Union of Railways is abbreviated as（ ）．
【简答题】For years and years people have been saying that the railways are dead．“We can do without railways” people say，as if motorcars and planes made the railways unnecessary．We all keep hearing that trains ...
相关题目：