严重休克出现的发绀属于
A.肺性发绀B.心性混血性发绀C.淤血性发绀D.缺血性发绀E.混合性发绀
参考答案:D
— Do you mind if I keep pets in this building? — _______ .
A.I'd rather you didn't, actually.
B.Of course not, it's not allowed here.
C.Never mind
D.No, you can't.
在铸造支架的组成部分中,具有防止网状连接体在制作义齿和充填塑料时下沉作用的部分是 ()
A.网状连接体
B.大连接体
C.支架支点
D.加强带
E.固位体-卡环