Questions 20 to 22 are based on the passages you have just heard.[音频]
About 16 million.
B. About 25 million.
C. About 36 million.
D. About 45 million.
查看答案
NO
A. Jobs in transportation.
B. Jobs in production.
C. Jobs in engineering.
D. Jobs in administration.
NO
A. Wisconsin.
B. Pennsylvania.
C. Massachusetts.
D. Kentucky.
Questions 23 to 25 are based on the passages you have just heard.[音频]
About three days.
B. About seven days.
C. About ten days.
D. About fifteen days.
NO
A. In 1935.
B. In 1940.
C. In 1945.
D. In 1950.
微信支付 
支付宝支付