下列哪条不属于可摘局部义齿基托的主要作用()
A.传导、分散力
B.连接义齿各部分,形成功能整体
C.修复缺损的软硬组织
D.提供义齿的主要固位作用
E.间接固位
参考答案:D
解方程
(1)(x-5)(x-3)=8
(2)(2x+1)2-3=2(2x+1)
I ________ through that bitter period without your generous help. [ ]
A. couldn't have gone
B. didn't go
C. wouldn't go
D. hadn't gone