Question

【题目】China plans to digitize the management of its grain industry by 2020 to improve food security, ________ grain transportation between provinces and the amount of imported grain have been high in recent years.

A. as long as B. as C. after D. while

Answer 1

【答案】B

【解析】考查连词。句意：随着最近几年省际的粮食运输和粮食进口量一直都很高，为了改善食品安全，到2020年，中国计划实现粮食行业管理数字化。A. as long as只要；B. as随着，一边……一边；C. after在……之后；D. while当……时候。空格处表示伴随状态，故选B。