“4□□”是一个三位数，而且是3的倍数．这个三位数最小是______．
“4□□”是一个三位数，而且是3的倍数．这个三位数最小是：402；
故答案为：402．
根据句意及汉语的提示，写出单词。
1. There is a ___ (直接的) connection between these events.
2. Don't ____(使烦恼) yourself with such a matter.
3. Please_______(借) me your bicycle for an hour, Andrew.
4. I ____ (想知道) whether you would mind helping me for a few minutes.
5. He gave_____ (命令) that they should go home at once.
原核生物DNA复制过程中负责解开DNA双螺旋的蛋白是（）
A.DnaA
B.DnaB
C.DnaC
D.DnaG
E.拓扑异构酶
