养老保险责任承担的主要模式有（）。
A.政府责任型
B.责任分担型
C.个人负责型
D.混合责任型
E.雇主单独责任型
参考答案：A, B, C, D
用动词的适当形式填空
1. He wants ________ (swim) in the pool.
2. He likes _________(run ) in the morning.
3. They often go _______( see ) an action movie.
4. School usually _______(start) at 8:30 am and ________(finish) at 4:30 pm.
5. Please _______( fill ) in the blanks.
国产普通型毫秒电雷管共（）段
A.10
B.15
C.12
D.20
pm.