领导班子的结构,一般包括()、()、()和()。
参考答案:年龄结构;知识结构;能力结构;专业结构
We used to have a lot of friends to ______, but now we don't have time to meet them ______. [ ]
A. chat with; any more
B. chat; any more
C. chat with; no more
D. chat; no more
胚胎分割