题干
—Why don't you have a notebook with you?
—I've _______ it at home.
A：lost
B：forgotten
C：left
D：found
答案(点此获取答案解析）
C
—Why don't you have a notebook with you?
—I've _______ it at home.
A：lost
B：forgotten
C：left
D：found
与直线
垂直，则
的值为（ ）
