keep the lines tight

A．保持缆绳受力

B．谨防断缆

C．单绑

D．挽牢

[名词解释] tight junction (紧密连接)

[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

[单选题]You should （松）_____ the mooring lines at the same time when the wind is bigA．fastenB．slackC．fastD．slacken

[单选题]Would you please ____ the mooring lines ?A．adjustedB．adjustingC．adjustD．adjusts

[单选题]Put the__（防鼠挡）on the lines.A．rat guardsB．stopping guardsC．fendersD．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