DSC distress relays can be transmitted by either（）or（）.

Where tanks are arranged for either oil or ballast, （） must be fitted in the pipeline.

Clouds that form as small white flakes or scaly globular masses covering either small or large portions of the sky are（）.

Those generally used additives for cooling water are either anti-corrosion oils or inorganic（）.

Where tanks are arranged for either oil or ballast （） must be fitted in the pipe so that only the ballast main or the oil transfer main connected to the tank.

Either the shirts or the sweater（）a good buy

Clouds that form as small white flakes or scaly globular masses covering either small or large portions of the sky are（）.

（） is not properly set thus causing either advanced or retarded firing.

The （） is not properly set thus causing either advanced or retarded firing.

Consonant sounds can be either （）or（）,while all vowel sounds are （）.

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.