化脓性关节炎关节面骨质破坏发生在发病后()。
A.1个月
B.2个月
C.3个月
D.4个月
E.5个月
参考答案:A
---I really like the record you lent me last week.
---____.
---And thank you very much for letting me keep it so long.
A.I’m glad you like it
B.That’s all right
C.Don’t mention it
D.I hope you like it
国际贸易需求是国际航运的()。
A.相关需求
B.间接需求
C.派生需求
D.本源需求