单项选择题
The pistons are cooled by （） oil from the forced lubrication.
A.being given B.giving C.supplying D.being supplied
单项选择题 Engine parameters shall be corresponded to NOx Technical Files,This is required by（）
单项选择题 Ships do not permitted to the TBT paint after 2008，It is required by（）
单项选择题 In order to limit the introduction of alien species by ship,（）was adopted on 13 Feb, 2004 at the IMO.
