The minimum number and capacity of bilge pumps and fire pumps and their distributing within the ship is governed by （）. ["Classification Society Rules","National requirements","The IMO International Convention for the Safety of Life at Sea","All of the above"]
签发银行汇票成功后需打印以下（）凭证。 ["银行汇票","记账凭证","收费凭证","通用凭证"]
供市场销售的卷烟，其包装有何特殊要求？
孙中山提出的“驱除鞑虏，恢复中华”中的“鞑虏”是指（）。 ["外国侵略者","封建贵族","满族统治者","大资产阶级"]
国际商务活动中，成为贸易保护新手段的绿色壁垒是指（）。 ["技术标准","安全标准","卫生检疫规定","新品包装和标签的规定"]
简述森林病理学的发展？
