题干
I'll give a talk tomorrow. I'm thinking about _______.
A：what to say
B：how to say
C：what can I say
D：how can I say
答案(点此获取答案解析）
A
I'll give a talk tomorrow. I'm thinking about _______.
A：what to say
B：how to say
C：what can I say
D：how can I say
为两条不同的直线，
为两个不同的平面，给定下列条件：
；②
；③
；④
.其中可以判定
的有 （ ）
