He’s working in Germany as a representative of a Chinese company. A. at onceB. at a time

He’s working in Germany as a representative of a Chinese company.
A. at once
B. at a time
C. at present
D. on time

A. at onceB. at a time(答案→)C. at presentD. on time解析：词义辨析题。作为中国公司的代表他目前在德国工作。A. at once 立刻 B. at a time 一度 C. at present 目前 D. on time 按时　　根据句意选Ｃ

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