以下哪项不属于常用固位体的类型（）
A.冠内固位体
B.冠外固位体
C.根内固位体
D.根外固位体
E.以上均是
参考答案：D
已知有理数x的近似值是5.40，则x的取值范围是（ ）
A．5.395＜x＜5.404
B．5.395＜x≤5.404
C．5.395≤x＜5.405
D．5.395≤x≤5.405
---I’m too nervous to give a talk in front of so many people.
--- _________, Maria. I think you can make it.
A．That’s true
B．With pleasure
C．Come on
D．You’re right
