对于具有几个相同几何形状的零件，编程时只要编制某一个几何形状的加工程序即可。
参考答案：对
More often than not, young readers find the novels of Dickens far more
exciting than _______ of Thackeray.[ ]
A. ones
B. them
C. these
D. those
下列哪种情况不是应用组织扩张器的适应证( )
A．瘢痕性秃发
B．枕部压疮
C．全鼻再造
D．颈部瘢痕挛缩
E．阴囊再造
