下面哪些选项不是新建对话框中常用选项卡的选项()
A、空白文档
B、WEB页
C、公文向导
D、电子邮件正文
参考答案:C
若一个三角形的三边之比为5:12:13,且周长为60cm,则它的面积为( )cm2.
____ I understood very little French, I couldn’t follow their conversation.
A.Although
B.Unless
C.Since
D.Before