随焦炉炉体老化，推焦电流（） ["减小","不变","增大"]
The （） or balance tank collects the re-circulated fuel oil. ["overflowing","sump","bilge","buffer"]
週末は、洗濯をする（）映画を見るかします。 ["が","か","の","こと"]
The Immigration and Naturalization Service is concerned with which document on a vessel making preliminary entry into a U.S. port from a foreign port?（）. ["Cargo Manifest","Certified Crew List","Curio List","Shipping Article"]
何谓上升流？其基本特征和识别方法是什么？
什么是透明变性？
