下列不属于第三方物流公司的是()。
A.UPS
B.EMS
C.DHL
D.京东快递
参考答案:D
Though it is 20 years________we last met, I still remember the scene________we got separated
on a snowy day. [ ]
A. before; where
B. before; which
C. since; when
D. since; where