题目内容

70()

A. argue
B. propose
C. assume
D. suppose

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更多问题

酒精杀菌效果最好的浓度(W/W)是

A. 50%
B. 70%
C. 75%
D. 95%
E. 以上都不是

63()

A. both
B. either
C. also
D. only

定期租船

A study has been ordered into the feasibility (可能性) of ______ (length) the airports main runway by 200 metres.

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