题干
– What did he want to know, Jack?
- ________ that we would have the picnic on Sunday.
- ________ that we would have the picnic on Sunday.
A：what it wa
B：when it wa
C：whether it wa
D：where it wa
答案(点此获取答案解析）
D
的准线为
，过
且斜率为
的直线与
，与
的一个交点为
．若
，则P的值为（ ）
