Put the__（防鼠挡）on the lines.

A．rat guards

B．stopping guards

C．fenders

D．planks

[单选题]He is assigned to [oversee]the production of the assembly lines.A.supervise

[单选题]He is assigned to [oversee]the production of the assembly lines.A.supervise

[单选题]He is assigned to [oversee]the production of the assembly lines.A.supervise

149.It is difficult to ________ the implication between the lines.A. get toB. ge

[单选题]A．s soon as the ship gets alongside the___(码头),you should lower the gangway and put a safety net below it.A．shoreB．wharfC．harbourD．port

【判断题】防鼠措施包括挡鼠板、鼠笼、鼠夹、鼠药等【判断题】防鼠措施包括挡鼠板、鼠笼、鼠夹、鼠药等

[单选题]keep the lines tightA．保持缆绳受力B．谨防断缆C．单绑D．挽牢

[主观题]脊线（Ridge lines）

[名词解释] 脊线（Ridge lines）

[单选题]During repair,lubrication lines and orifices must be （）.A . taken awayB . engagedC . connectedD . sealed off