检测茶叶中的粗纤维时，先进行酸消化，酸消化试剂为()。

A.1.25%的盐酸

B.1.25%的硫酸

C.1.25%的硝酸

D.1.25%的醋

Some of her suggestions have been adopted, but others have been turned ______ as they are not practical enough.

A．down

B．away

C．out

D．back

The terrorists had ______ their prisoner in a small room. However, they had not chained him to the wall.

A．restrained

B．refined

C．confined

D．restricted

前牙瓷贴面修复牙体预备时，轴面一般要求预备厚度为()mm。

A.0.2-0.3

B.0.3-0.7

C.1.0-1.5

D.1.5-2.0

E.2.0-2.5

哪种情况下不能设计单端固定桥()

A.尖牙缺失

B.第二、三磨牙缺失

C.修复前牙小间隙

D.上颌侧切牙缺失

E.第一、二磨牙缺失

确定全口义齿中线标志，哪项是错误的？()

A.眉间点

B.鼻尖点

C.人中沟

D.唇系带

E.舌系带