Load line regulations are designed to insure that a vessel has adequate structural strength and sufficient（）.

[单选题]The primary purpose of a load line is to establish required（）.A . minimum freeboardB . GMC . transverse stabilityD . fresh water allowance

[单选题]A load line is assigned to a ship to insure adequate stability and（）.A . mooring tensionB . riser tensionC . lifesaving equipmentD . structural strength

[名词解释] 检疫法规（quarantine regulations）

[单选题]A．) regulationsB．) rulesC．) disciplinesD．) principles

[单选题]Oil Pollution Regulations require any transfer or discharge of oil or oily mixtures to be recorded in theA．bridge logB．Master's logC．engine room logD．oil record

[单选题]The Programming languages are designed to (73) the communication between human and computers.(73) A．makeB．facilitateC．enableD．1et

[单选题]（）is the Internet commerce designed for direct communications and commercial relationship between a firmand its end customer.A .B2CB .B2BC .B2AD . D.A2B

[单选题]A thrust block is designed to（）.A . absorb the shock of wave pressure at the bowB . be placed between the engines and the foundation to absorb the vibrationC . transmit the thrust of the engine to the propellerD . transmit the thrust of the propeller

[单选题]D．I was in line waiting to pay. In line there were two people before me. A little boy was buying some rather strange clothes. He chatted with anyone who was interested in the clothes and soon we learnt that he was going to a kindergarten(幼儿园) party.

[单选题]A firewall is a (71) system designed to (72) an organization′s network against threats.(71) A．operatingB．programmingC．securityD．data(72) A．preventB．protectC．examineD．exploit