假性牙周袋又称为
A.龈袋 B.骨上袋 C.骨下袋 D.复合袋 E.复杂袋
参考答案:A
----What do you think will happen to him?
---- He has made ____ mess of the job, so I don't think he will have ____ happy ending. [ ]
A. a; a
B. a; /;
C. /; a
D. /; the
Excel2003的退出可以有哪几种方法()
A.使用“文件”菜单上的“退出”命令
B.双击标题栏左侧的控制符
C.点击标题栏右上角的关闭按钮
D.按住ALT+F4键