资本主义自由竞争时期，全面倡导自由贸易政策的是（）。 ["美国","德国","法国","英国"]
形式检查，也叫（），是指工商人员通过检查市场主体各类证件、文件、材料等，对市场主体登记情况和生产经营情况进行的检查。 ["A.定期检查","B.书面检查","C.日常检查","D.专项检查"]
The information on（）is not likely found in The Mariners Handbook. ["IALA Buoyage system","hydrography，topography，navigational aids and their services","basic meteorology and navigation in ice and hazards and restrictions to navigation","information on tides，currents and characteristics of the sea"]
简述纵骨架式舷侧结构的优点。
五站更换南线滤机出酸平衡管，要关闭南线上酸蝶阀，关南线（）进酸阀。 ["加热器","结晶","硅藻土","高位槽"]
中国采用ISO9000族标准的情况如何？
