About 90 percent of all U.S.workers are covered for retirement and disability under（）.
About 90 percent of all U.S.workers are covered for retirement and disability under（）.
A.social aid
B.pension plans
C.social security
D.life insurance
正确答案：social security
Tag：英语听力技巧与应用
时间：2023-12-22 15:05:27