[多选] 国家规定相关产品必须经过认证的，应当经过认证并标注认证标志后，方可（）或者在其他经营活动中使用。

Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE? （） Stack weights should be less when using a solid bar lashing as compared to a wire lashing。 Stack heights may be increased when using a solid bar lashing。 Stack heights should be reduced when using a solid bar lashing。 Solid bars should be used for lashing the first tier only，with wire lashings on the higher tier(s)。 焊接铝合金宜采用（） 手工电弧焊。 CO₂气体保护焊。 埋弧焊。 氩弧焊。 通用计量器具按工作原理可分为几类？ 人体缺乏维生素B12时易引起：（） 脚气病。 恶性贫血。 坏血病。 佝偻病。 An International Oil Pollution Prevention Certificate (IOPP) for a "new" vessel ceases to be valid if （）. it exceeds 3 years from date of issue。 an alteration approved by the Captain of the Port is made。 an intermediate survey has not be conducted within 12 months from the date that the IOPP was issued。 the vessel is transferred to the flag of another country。 国家规定相关产品必须经过认证的，应当经过认证并标注认证标志后，方可（）或者在其他经营活动中使用。