生物群落从演替初期到形成稳定的成熟群落,一般要经历______、过渡期和顶级期三个阶段。
参考答案:先锋期
词汇运用。
1. They think it might be the _________ (风), but I don't think so.
2. I don't like eating chocolate. It tastes too _________ (甜).
3. Could you __________ (提供) me with information about student exchange programs?
4. The light bulb was __________ (发明) by Edison.
5. We're going to Africa on vacation. We __________ (希望) to see some elephants.
6. His father is a ___________ (农民), he works on the farm.
7. These days, I hear strange ___________ (噪音) outside every night.
8. I can't sleep the night before I take a big ___________ (考试).
9. She really wants to get ___________ (结婚).
10. I have a __________ (梦想), I want to be famous in the future.
柜员对大额查询业务使用“6831事务信息录入”交易进行查复之后,需要使用()交易,核实查复书状态。
A.6846事务信息查询
B.6845汇划往来账清单打印
C.6843事务信息单笔打印
D.6831事务信息录入