不能在元件属性对话框中设置的属性是（）。
A.链接
B.标识符
C.实例名
D.色调
参考答案：C, D
he was ill, he didn't come to school. [ ]
A. Because; /
B. Though; /
C. Though; /
D. Because; /
简述影响加工余量的因素有哪些。
