在职位管理人员培训的主要方法不包括（）。
A.职务轮换
B.替补训练
C.设立副职
D.临时提升
参考答案：B
单句改错。
1.This question is very easier than that one.
A B C D
2. Jimmy is a little funny than me.
3.I need your help tomorrow. Can you come a little early?
4. Shanghai is larger than any other cities in China.
5. My parents are all teachers in a middle school.
引起品种混杂退化的主要原因
