The chart of a beach area shows a very flat slope to the underwater beach bottom. What type of breakers can be expected when trying to land a boat on this beach? （） Surging。 Spilling。 Plunging。 Converging。
The work fuel does in each working cycle can be obtained by taking the （）. precautions。 rpm。 indicator cards。 B and C。
以下哪些是通过畅捷移动t+plus手机客户端客户查询能实现的功能（） 查询客户和联系人及往来帐款信息。 查询客户历史订单。 直接为客户下销售订单。 以短信息方式转发客户的信息给其他人。 以邮件方式转发客户的信息。
The buoy symbol printed on your chart is leaning to the northeast. This indicates （）. you should stay to the north or east of the buoy。 you should stay to the west or south of the buoy。 the buoy is a major lighted buoy。 nothing special for navigational purpose。
The words such as quantity, grade, viscosity and specific gravity should be in the （）. repair list。 spare parts order list。 price list。 bunker list。
铁芯多点接地属（）缺陷。
