【单选题】
Silk（）by Chinese for thousands of years now.
A、has used
B、has been used
C、was used
D、is used
查看正确答案A、has been used B、was used C、is used
搜题
更多“Silk（）by Chinese for thousands of years now.”相关的问题
第2题
A、English/all distress communications B、Chinese/some distress calls C、the language decided by Administration/all distress calls D、Japanese/some distress alerts
第3题
A、A.use oil dispersion agent and wait for investigation B、B.try to collect the oil on deck or in water C、C.report to Harbor Master D、D.B and C
第4题
A、by international law in the courts of or by arbitration in any country the defendant chooses B、by Hague Rules C、by New Jason Clauses D、by Chinese law in the courts of or by arbitration in the PRC
第5题
A、Chinese Young Volunteers organization B、chinese youth volunteers Associasion C、Chinese Young Volunteers Associasion D、chinese youth volunteers Party
第9题
A、to use the oil dispersant B、to organize the persons to collect the oil C、to report the matter to MSA and ask for instructions D、to put forward an accident report within 24 hours
