A. spends B. takes C. costs D. pays
A. shipping B. shipment C. freight D. shopping
A. inform B. notice C. advise D. circular
A. ship..in.. B. ship..on.. C. ship..of.. D. ship..to..
A. freight B. height C. weight D. width
A. tracking web B. tracking number C. following number D. following web
A. pre-sale B. on-sales C. after-sales
A. achieved B. received C. obtained D. get
A. requirement B. factor C. term D. condition
A. 组分和载气 B. 载气和固定液 C. .组分和固定液 D. .组分