在纸上画一个正六边形,在六边形外画一条直线l,从六个顶点分别向直线l引垂线可以得到k个不同的垂足,那么k的值在3,4,5,6这四个数中不可能取得的是( )。
5
用所给词的适当填空。
1. There ________ (be) some tall trees in the zoo five years ago.
2. ________ (be) you ready for your trip?
3. I'm going to ________ (wear) fashion(时尚) clothes.
4. Don't forget ________ (tell) your parents the news.
5. Be quiet! We are ________ (listen) to the teacher.
6. —Can I borrow your pen?
—Mine is ________ (break).
内部账设置的基本规定,以下哪一项不属于内部账中的外汇买卖产品?()
A.代客外汇买卖
B.自营外汇买卖
C.银行承兑汇票
D.市场结售汇平盘