一般的全口义齿塑料基托的厚度为A．0.5～1mm B．2.0～2.5mm C．2.5

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问题单项选择题

一般的全口义齿塑料基托的厚度为

A．0.5～1mm

B．2.0～2.5mm

C．2.5mm～3mm

D．1.0mm～1.5mm

E．1.5mm～2mm

答案

参考答案：E

单项选择题

WHO规定的青春期的年龄范围是

A．10～20岁

B．9～15岁

C．12～18岁

D．13～20岁

E．12～15岁

选择题

Although ________ after the Civil War, the American blacks still took no important role in the white Americans except as servants and laborers.

A．no longer being slaves

B．were no longer slaves

C．no longer slaves

D．no longer been slaves