We __________a great time at the party last night.
A:have
B:has
C:had
D:are having
①我素不知道天下有这许多新鲜事…… 素:____
②他也躲到厨房里,哭着不肯出门…… 肯:____
(2015·上海)设z1, z2∈C, ,则“z1, z2中至少有一个数是虚数”是“z1-z2是虚数”的( )
If we ________ something, we express something fully and clearly.
一个等腰三角形的一个角为80°,则它的顶角的度数是 ____